
(CNN) -- As the total death toll in Syria marches towards 40,000, the Russian Foreign Ministry on Thursday lambasted the recent U.S. backing of Syria's opposition in its quest to overthrow President Bashar al-Assad.
Homs and Damascus are the deadliest places in Syria, according to an opposition group that keeps a running total of those whose lives came to a bloody end in 20-month armed conflict.
Read more: Syrian opposition leader expects more from U.S.
Of the 37,387 who have perished since fighting began, 6,992 were killed in Homs and 6,750 in the suburbs of Damascus, the Violations Documentation Center said.
The total number includes 3,061 government soldiers, which the group only recently started to include in its count.
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
Syria's new opposition leader
France and Syria, today and in history
Israel in communication with Assad
Artists express pain through paintings
Read more: Young Syrian amputee makes dangerous journey to find help
Russia's Foreign Ministry published harsh criticism in its active Twitter feed of the recent show of support by the United States, France and Arab states around the Persian Gulf for fighters trying to topple Assad.
"The Syrian opposition has been given a false signal, strengthening the positions of extremists, including terrorists," a tweet reads. The ministry said the decision went against international principles on Syria established in Geneva.
Quoting Foreign Minister Sergey Lavrov, the ministry tweeted: "If the priority is Assad's fate, it will be paid for with new casualties in #Syria. Our key priority is to prevent such sacrifices."
Lavrov met with the Gulf Cooperation Council in Riyadh, Saudi Arabia, on Wednesday. Russia has shown support for its long-standing ally Assad, while the GCC openly backs the opposition. Both sides have been accused of supplying weapons to the conflict parties.
The conflict raged on Thursday in Syria's perpetual flashpoints with no sign of losing intensity. The killing continues to drive civilians to flee over the country's borders.
The U.N. refugee office says 414,838 Syrians are in neighboring countries registered as refugees or waiting to register. Turkey has the single highest number, with 114,944, it says.
The Violations Documentation Center regularly publishes a meticulous tally of those who have been killed during Syria's armed conflict, claiming to include in its count only those whose deaths are documented on video or with an ID card. It works closely with the Local Coordination Committees of Syria, a source commonly cited in reports on Syria.
Both organizations support the overthrow of the Syrian government.
The figures in their statistics will continue to rise. Ninety-five people died Thursday, including 46 in Damascus and its suburbs, and 14 in Homs, according to the LCC.
Loading weather data ...