U.S. Secretary of State John Kerry continues talks with his Russian counterpart Sergei Lavrov in Geneva on Friday about how to put Syria's chemical weapons under international control.
The United Nations says the meetings on Friday will also include international Syria envoy Lakhdar Brahimi, who has been pushing for an international peace conference to end Syria's civil war.
The top Diplomats from Washington and Moscow began meeting Thursday to go over a Russian proposal that would allow Syria's government to give up its chemical weapons in a bid to avoid a U.S. military strike.
Syrian President Bashar al-Assad publicly agreed to the plan Thursday, but warned the deal would only work if the U.S. "stops threatening and seeking to invade" his country.
Damascus has joined an international chemical weapons ban. But it says it will take one month to turn over details on its chemical weapons stockpile.
Russian President Vladimir Putin on Friday praised the move, saying it shows the "serious intentions" of the Syrian government toward resolving the two and half year civil war.
Kerry has urged Syria to act quickly to give up its chemical weapons. He said Thursday that, "should diplomacy fail, force might be necessary to deter and degrade Assad's capacity to deliver this weapons."
President Barack Obama has threatened military strikes on Syria in response to an chemical weapons attack last month on a rebel-held area of Damascus that Washington says killed 1,400 people.
The U.S. says the Syrian government is responsible for the attack. Damascus denies this, saying the rebels carried out the attack. Russia, Syria's main international ally, has also denied that the government is responsible.