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United media office of Arbeen, File, Associated Press
FILE - This Wednesday, Aug. 28, 2013 citizen journalism file image provided by the United media office of Arbeen which has been authenticated based on its contents and other AP reporting, shows a member of UN investigation team taking samples of sands near a part of a missile that is likely to be one of the chemical rockets according to activists, in Damascus countryside of Ain Terma, Syria. Syrian opposition activists and other witnesses tell The Associated Press that Syrian government forces have attacked rebel-held areas with poisonous chlorine gas in recent months. They say the attacks left scores of men, women and children coughing, choking and gasping for breath. The reports have been denied by the Syrian government and have yet to be confirmed by any foreign country or international organization. But if true, they highlight the limitations of the global effort to rid Syria of its chemical weapons.

MOSCOW — Russia on Friday dismissed recent reports of the Syrian government using chemical weapons on rebel-held areas as fabrication.

The U.N. Security Council called for an investigation Wednesday over allegations that government forces have attacked rebel-held areas with poisonous chlorine gas in recent weeks and months.

Syria's government has denied the accusations, which it said were politicized. The U.S. and France said they were looking into the reports, but had no definitive proof.

Russia's Foreign Ministry on Friday vehemently denied that Syria's government was behind the chemical attacks, calling it fabrication.

"Accusations against government forces of alleged use of poisonous chemical weapons continue to be fabricated," the ministry said in a statement, adding that Moscow has "reliable information" proving "such allegations aren't true." But the ministry didn't provide details about the information it said it had.

More than 150,000 people have been killed and millions uprooted from their homes since the Syrian conflict erupted in March 2011.