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(CNN) -- A deadly attack Wednesday delivered the harshest blow yet to President Bashar al-Assad's regime, taking the bloodshed into his inner circle.
Jordan's king calls Syria attack 'a tremendous blow' to al-Assad regime
Three top officials were killed and a number of others were wounded in an explosion at a national security building in Damascus, state TV reported.
The attack came after several days of violence in the capital. At least 189 people were killed across the country on Wednesday, including 37 in Damascus and 69 in its suburbs, the opposition Local Coordination Committees of Syria said.
Syrian army soldiers take control of the village of Western Dumayna north of the rebel-held city of Qusayr on Monday, May 13. Syrian troops captured three villages in Homs province, allowing them to cut supply lines to rebels inside Qusayr town, a military officer told AFP. Tensions in Syria first flared in March 2011 during the onset of the Arab Spring, eventually escalating into a civil war that still rages. This gallery contains the most compelling images taken since the start of the conflict.
Syrian civil war in photos
The officials killed were Defense Minister Dawood Rajiha; Deputy Defense Minister Assef Shawkat -- al-Assad's brother-in-law; and Hasan Turkmani, al-Assad's security adviser and assistant vice president, state TV reported.
Interior Minister Ibrahim al-Shaar was among those injured in the blast, state TV said, adding that he "is in good health and that his condition is stable."
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The attack, which occurred during a meeting of ministers and security officials, was coordinated by rebel brigades in Damascus, said the deputy head of the opposition Free Syrian Army, Col. Malek al-Kurdi.
The government described it as a suicide bombing. But al-Kurdi said a remote control was used to detonate an explosive device that had been planted inside the meeting room.
Al-Assad quickly named Gen. Fahd Jassem al-Freij as defense minister, state-run news agency SANA said.
State-run SANA said the government has killed or captured a "large number" of terrorist infiltrators in Damascus and inflicted "heavy losses" on terrorists in Homs and Idlib.
Video from a Damascus suburb showed Syrians rejoicing after news spread of the bombing.
Soon after, the pro-government Shabiha militia took to the streets, attacking with knives, shooting and saying, "This is retribution for what you have done," according to an opposition activist in Damascus, who is going by the name Lena to protect her identity.
There were bodies in the streets around the Yarmouk, a Palestinian refugee camp, and people were too afraid to collect them, Lena said.
"The people are really scared," she said, adding that mosques were blaring the messages "Stay in your homes" and "God is great."
A Damascus resident said shootings occurred in Baghdad Street, a major road that includes branch offices of state security agencies.
In the neighborhood of Medan, where violence has raged in recent days, Free Syrian Army fighters "launched their biggest attack yet all over Damascus, in 17 points," said Abo Abdo, a rebel fighter. They were working to "disperse the regime's forces all over the capital," he said.
Syria, on the official Syrian Arab News Agency, said its armed forces "chased down terrorists who infiltrated" Medan, and "killed and arrested a large number of them. The military units also chased down terrorists who terrorized some families in the neighborhoods of al-Qaboun and Tishreen and forced them to leave their homes."
With the Syrian government restricting foreign journalists from gaining access to the country, CNN cannot independently confirm reports of violence or details about the attack.
The bombing took place in a building in Rawda Square, near al-Assad's home and the U.S. Embassy, which suspended its operations in February. Security officials and government spies have had a heavy presence in the area.
The bombing's repercussions spread from the capital of Syria to the capital of Egypt, where clashes erupted Wednesday between the Egyptian police and hundreds of protesters outside the Syrian Embassy. Some of them were chanting, "Down, Down, Bashar al-Assad!"
"We only wanted to remove the flag and replace it by the independence flag, but the Egyptian riot police started beating us so we pelted them with rocks," said Ahmed H. Aggour, an organizer of the protest in Cairo. "Next thing you know they fired an incredible amount of tear gas, several canisters landed on the British Embassy nearby."
He added, "We want people in Syria to see how we are supporting their cause here in Egypt."
Most of the protesters were Egyptian, Tarek Shalaby, an Egyptian activist and web designer at the scene.
Alla Mahmoud, a spokesman from the Interior Ministry, told CNN that 15 protesters were arrested. Some suffered minor injuries, from excessive inhalation of tear gas to bruises.
Meanwhile, U.S. President Obama called Russian President Vladimir Putin on Wednesday to discuss the Syrian situation, the White House said. "They noted the differences our governments have had on Syria, but agreed to have their teams continue to work toward a solution," it said.
A planned Security Council vote on a draft resolution on Syria was delayed at the request of Kofi Annan, joint envoy to Syria for the United Nations and the Arab League, until 10 a.m. Thursday, diplomats said.
Annan, who met Tuesday with Putin in Moscow, earlier this year put forward a peace plan that has failed to stop the violence.
Western countries are pushing for a resolution that threatens sanctions against al-Assad's regime if government forces don't stop attacks. That draft also calls for renewing the 300-member U.N. observer mission for 45 days.
The observers' work has been suspended because of violence.
Throughout Syria's 16-month crisis, Russia has opposed any international effort that would blame, punish or change the leadership of the Syrian government. Russia -- along with China -- has vetoed two previous draft resolutions in the U.N. Security Council, leading to accusations that Russia is protecting the Syrian regime.
Russia, meanwhile, has put forth its own draft, which "strongly urges all parties in Syria to cease immediately all armed violence in all its forms." The Russian draft also calls for renewing the U.N. observer mission for three months.
At the United Nations, German Ambassador Peter Wittig said Wednesday's events in Damascus "underline as clearly as never before that the Security Council now has to act. It has to send out a strong signal to the Syrian regime to stop the use of heavy weapons. We want to give the Annan plan, which we all support in the council, some teeth -- and that's why we should adopt a resolution with the sanctions threat."
In Amman, Jordan, King Abdullah said the situation in Syria is nearing an all-out civil war. "In other words, it's getting very, very messy," he said. "When you get full-out civil war, there is no coming back from the abyss."
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The attack represents "a massive psychological blow to the regime" and will accelerate al-Assad's "demise," predicted Anthony Skinner, an analyst with Maplecroft, a think tank that provides risk assessments on global business.
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It could suggest that "the regime itself is crumbling," said Rime Allaf, an analyst with Chatham House, a think tank focusing on international affairs.
Events in Syria show "a real escalation in fighting," said U.S. Defense Secretary Leon Panetta.
It "tells us that this is a situation that is rapidly spinning out of control, and for that reason it's extremely important that the international community, working with other countries that have concerns in that area, have to bring maximum pressure on Assad to do what's right, and to step down and to allow for that peaceful transition," Panetta said.
The U.S. government announced Wednesday a new round of sanctions against members of the Syrian government.
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Syrian Information Minister Omran al-Zubi, speaking on state TV, vowed that those behind the attack will be held accountable.
He insisted that those trying to divide the army are failing. "This army has not been divided," he said.
But increasing numbers of officials in the Syrian military have defected in recent days. Two brigadier generals fled overnight to Turkey, bringing the number of Syrian generals in Turkey to 20, a Turkish Foreign Ministry official said.
Rajiha, one of those killed Wednesday, was a member of the country's minority Christian community. who was named by the U.S. Treasury in sanctions this year. U.S. citizens were prohibited from engaging in transactions with him and other officials amid what the U.S. government called Syria's "continued use of violence against its people."
In 2006, the Treasury named Shawkat -- then Syria's director of military intelligence -- in an executive order, freezing his assets and prohibiting U.S. citizens from engaging in transactions with him. At the time, the U.S. government called Shawkat "a key architect of Syria's domination of Lebanon, as well as a fundamental contributor to Syria's long-standing policy to foment terrorism against Israel."
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Days ago, Nawaf al-Fares, the former Syrian ambassador to Iraq who has become the country's highest-level diplomatic defector, told CNN that Shawkat had run an al Qaeda in Iraq training camp.
A U.S. official said al-Fares' claim was "broadly consistent with our understanding" of the Syrian regime's cooperation with al Qaeda "elements."
But the Syrian regime has repeatedly denied involvement in terrorist activities -- and has blamed the violence of the past 16 months on "armed terrorist groups."
Dark images of horror and despair smuggled out of Syria
Since the crisis began in March 2011, the United Nations estimates, more than 10,000 people have been killed in the violence; the opposition Local Coordination Committees of Syria estimates that more than 16,000 have died.
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CNN's Salma Abdelaziz, Ivan Watson, Arwa Damon, Amir Ahmed, Holly Yan, Richard Roth, Brian Walker and Joe Sterling and journalist Mohamed Fadel Fahmy contributed to this report.
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Syrian troops move into Dumayna on May 13.
Rebel fighters fire at government forces in the northern Syrian city of Aleppo on Sunday, May 12.
Smoke rises from an explosion in a Syrian village near the Israeli border on Tuesday, May 7.
Multiple explosions hit a Syrian village near the Israeli border on May 6.
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A smoke cloud rises from shelling on the the al-Turkman mountains in Syria's Latakia province on Thursday, April 25.
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Syrian rebels launch a missile near the Abu Baker brigade in Albab on January 16.
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Two young boys sit underneath a washline in a refugee camp on the border between Syria and Turkey near Azaz on December 5.
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Damaged houses in Aleppo are seen after an airstrike on November 29.
A Syrian rebel mourns the death of a comrade in Maraat al-Numan on November 20.
Syrians protesters stand on Assad's portrait during an anti-regime demonstration in Aleppo on November 16.
A Syrian rebel takes cover during fighting against Syrian government forces in Aleppo on November 15.
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A rebel fighter fires at a Syrian government position in Aleppo on November 6.
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A Syrian rebel fires at an army position in the Karm al-Jabal district of Aleppo on October 22.
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A Syrian opposition fighter stands near a post in Aleppo on October 11.
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A woman walks past a destroyed building in Aleppo on September 13.
Free Syrian Army fighters battle during street fighting against Syrian army soldiers in Aleppo on September 8.
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Syrian refugees walk across a field before crossing into Turkey on March 14.
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Members of the Free Syrian Army stand in an valley near the village of Ain al-Baida, close to the Turkish border, on December 15, 2011.
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A Syrian man holds up a portrait of President Bashar al-Assad during a rally to show support for the president in Damascus on April 30, 2011.
Syrians rally to show their support for President Bashar al-Assad in Damascus on April 30, 2011.
A screen grab from YouTube shows thick smoke rising above as Syrian anti-government protesters demonstrate in Moaret Al-Noman on April 29, 2011.
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Syrian protesters chant slogans in support of al-Assad during a rally in Damascus on March 25, 2011.
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