Serbian TV continued to show Serb protests Tuesday RELATED VIDEO British Defense Ministry shows video of selected sites being hit during NATO missions Tuesday ( April 6) Real 28K 80K Windows Media 28K 80K CNN's Brent Sadler reports from a small town hit during NATO airstrikes, Tuesday (April 6) Real 28K 80K Windows Media 28K 80K CNN's Patricia Kelly reports on NATO plans to deploy 24 Apache attack helicopters (April 5) Real 28K 80K Windows Media 28K 80K To view the latest video streams on the strikes in Yugoslavia, use the arrow buttons below to scroll through the video gallery.        Windows Media Real        28 K 80 K IMAGE GALLERY: Of burning flags and rock concerts: Protesting the NATO strikes Belgrade cruise missile strike The Serbs and Kosovo  ALSO Cohen heading to Europe for NATO summit Russian aid both blessed and cursed Diplomatic efforts continue despite cease-fire rejection Airstrikes hit home in a small Serbian town Macedonia: Serbs forcing refugees back to their villages Pentagon: Yugoslavia considers captured soldiers POWs  MAPS NATO officials describe attacks from day one through day thirteen

In this story: Four civilians dead in Aleksinac Novi Sad hit again NATO: Evidence ties Milosevic to violations RELATED STORIES, SITES

BELGRADE, Yugoslavia (CNN) -- NATO promptly dismissed a cease-fire proposed by Yugoslav President Slobodan Milosevic on Tuesday and renewed its air attacks on Yugoslav forces.

Explosions were reported late Tuesday near Belgrade and Podgorica, the capital of the Yugoslav republic of Montenegro.

The U.S. aircraft carrier USS Theodore Roosevelt joined NATO forces, bringing its 80 aircraft and crew of more than 5,500 into action against Yugoslavia for the first time.

Aboard a nearby warship, CNN Correspondent Martin Savidge said planes including F-14s, F-18s and special electronic warplanes designed to interfere with or strike radar or anti-aircraft installations took off every 30 seconds. Two hours later, the fighters began to return.

Targets in and around Belgrade were struck, including an area near the Yugoslav capital's main airport, Surcin, CNN Correspondent Brent Sadler said.

Serbian TV reported the Belgrade suburb of Pancevo was hit, as was a military chemical factory in the central Serbian town of Lucani, about 110 miles southwest of the capital.

Blasts shook an area heavily populated by ethnic Albanians southwest of the Kosovo provincial capital of Pristina, Serbian television said.

There was no independent confirmation of those reports.

In Podgorica, CNN's Mike Hanna reported a loud explosion to the south of the city, followed by two secondary explosions and eruptions of tracer fire to the southeast.

The Yugoslav 2nd Army is stationed in Montenegro, which has declared itself neutral in this conflict.

Earlier Tuesday, the Yugoslav government announced it would unilaterally cease its military activities in Kosovo in advance of Orthodox Easter.

"To honor the biggest Christian holiday, Easter, all actions of the army and police will stop in Kosovo against the terrorist organization KLA, starting April 6 at 8 p.m. (2 p.m. EDT)," said a government statement carried by Serbian TV.

Foreign Ministry spokesman Nebojsa Vujovic confirmed to CNN what he said was an open-ended cease-fire.

He also told CNN that Yugoslavia would be approaching international aid agencies to discuss the return of the Kosovo refugees.

NATO footage of a building destroyed during recent NATO strikes

However, NATO has insisted that Milosevic first prove he is serious about peace before the NATO air campaign will stop.

"The unilateral cease-fire proposed by Yugoslavia and the government of Serbia is clearly insufficient," NATO Secretary-General Javier Solana said in a statement. "Before a cease-fire can be considered, President Milosevic must meet the demands of the international community."

Solana demanded Yugoslavia withdraw its forces from Kosovo; accept a political framework for the province on the basis of February's peace talks in Rambouillet, France; allow the deployment of an "international security presence"; and facilitate the return of refugees.

"We've made very clear that any hollow half-measures will not stop the bombing," David Leavy, spokesman for the National Security Council, said in Washington in an immediate response to the cease-fire offer.

Earlier Tuesday, NATO spokesman Jamie Shea said that NATO members were anticipating an offer from Milosevic to end hostilities that would fall well short of Western demands.

"At this stage we are not ready to settle for anything less than our objectives," Shea told a Brussels news conference.

He said NATO airstrikes were successful against Yugoslav armed forces and would continue unabated.

Four civilians dead in Aleksinac

CNN confirmed that at least four civilians were killed when apartment buildings were hit in a town south of Belgrade during overnight NATO raids.

NATO military spokesman Air Commodore David Wilby said at the news conference in Brussels that it was "possible" that one of the bombs "fell short" of its intended target in Aleksinac.

"Any unintended damage ... is very much regretted," he said.

British Defense Minister George Robertson, speaking in London, said if reports of civilian casualties were true, "then this is, of course, regrettable. But as we've always said: Despite all our efforts, such casualties will occur in a campaign of this size and complexity."

NATO's overnight raids hit targets throughout Yugoslavia, including bridges, airfields, petroleum installations, police headquarters and air defense installations, Wilby said.

However, two large explosions also tore through apartment blocks and what appeared to be civilian homes in the mining town of Aleksinac, about 160 kilometers (100 miles) south of Belgrade.

CNN correspondent Brent Sadler reported that at least four people were killed and that a medical clinic used by civilians had also been hit.

Taken to the scene by Yugoslav officials, Sadler said elderly men and women were among the casualties. One woman said she had saved two of her children but had to leave other family members beneath the rubble.

Fire crews were trying to put out blazes at gutted apartment blocks, Sadler reported.

The Belgrade-based Tanjug news agency said Tuesday that 10 apartment buildings were destroyed and an entire street was obliterated in Aleksinac, a town of 17,000.

Wilby said a technical failure, or anti-aircraft fire, could have caused the weapon to miss its intended target, which was a nearby military post housing an artillery unit.

Damage from what Serbian TV identified as footage from Tuesday's airstrikes in Yugoslavia

Novi Sad hit again

In Novi Sad, Yugoslavia's second-largest city, an orange fireball lit up the sky overnight. Serbian TV said an oil refinery had been hit.

The city's only standing bridge was also hit by missiles but not destroyed, Serb officials said.

The main road linking Belgrade with the Serb province of Kosovo was also hit, and British officials -- speaking at a news conference in London -- showed gun camera video of a fuel dump at Pristina being struck by bombs.

NATO: Evidence ties Milosevic to violations

U.S. Secretary of State Madeleine Albright -- speaking at an event in Washington to mark NATO's 50th anniversary -- accused Milosevic on Tuesday of masterminding a "nightmarish cycle of murder and mayhem" in the Balkans.

"President Milosevic has seized every opportunity to advance his own power by attacking first Slovenia, then Croatia, then Bosnia-Herzegovina -- and now the people of Kosovo," she said.

Shea, NATO's civilian spokesman, said in Brussels that the alliance now had strong evidence that Milosevic and the Yugoslav authorities were responsible for systematic human rights violations in Kosovo.

Shea said the evidence was based on many accounts from the tens of thousands of refugees pushed out of Kosovo by Serb forces.

The violations included looting of homes and businesses, detentions and "disappearances" of "many, many, many men of military age" in Kosovo and summary executions in at least 50 towns.

NATO has said the alliance will hand over evidence to the International War Crimes Tribunal for the former Yugoslavia, and Shea that there would be "no impunity, no hiding place" for those responsible for human rights violations and war crimes.

British defense officials said that an estimated 1.1 million Kosovo Albanians, out of a total population of 1.8 million, had been driven from their homes by what London described as the Serb campaign of ethnic cleansing.

Yugoslavia says the ethnic Albanians are leaving Kosovo because of the NATO airstrikes.

In Moscow, Yugoslav Ambassador Borislav Milosevic, the brother of President Milosevic, said 300 civilians had been killed and 3,000 others wounded in the 14-day NATO bombing campaign.

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