Russian Foreign Minister Sergei Lavrov discussed the Syrian conflict with his American counterpart, Secretary of State John Kerry, for the second time in four days Wednesday, AFP reported.
The phone call came amid concerns in Washington over an alleged Russian military buildup in the war-torn country.
The two discussed "the problems of regulating the conflict in Syria," the foreign ministry in Moscow said in a terse statement, without providing further details.
The New York Times reported late last week that Russia had sent a military advance team to its ally Syria and was taking other steps that Washington fears may signal plans to vastly expand military support for the beleaguered Assad.
