The
US and Russian foreign ministers are due to hold their second round of
talks in Geneva on how to secure Syria's chemical weapons.
US officials said Thursday's meeting was comprehensive and lasted about an hour. Talks may continue beyond Friday.The BBC's Paul Adams in Geneva says it appears large disagreements still exist between the two governments.
Syria's president has agreed to give up his chemical arsenal, but the rebels say it will not stop the killing.
Free Syrian Army spokesperson Louay Moqdad told the BBC that the government of President Bashar Assad still had plenty of conventional weapons at his disposal and said he was "just trying to buy time" with the help of the Russians.
Syrian conditions UN-Arab League envoy Lakhdar Brahimi - who has been leading efforts to broker a political solution to the crisis - is due to attend Friday's meeting.
Our correspondent says Mr Brahimi will want to know whether the talks can develop into a fresh round of negotiations over a wider political settlement.
On Thursday, Russian Foreign Minister Sergei Lavrov and US Secretary of State John Kerry said they hoped the plan to put Syria's chemical weapons under international control could avoid the threat of US military action.
Chemichal weapons plan timeline
5-6 Sep: Vladimir Putin and Barack Obama discuss idea of placing Syria's chemical weapons under international control on sidelines of G20 summit9 Sep: Russia's Foreign Minister Sergei Lavrov says he has urged Syria to hand in chemical weapons and have them destroyed; Syria welcomes plan
10 Sep: Syria's foreign minister makes first public admission of the regime's chemical weapons stockpile; Syria commits to Russian plan. Mr Obama postpones Congress vote on military action and says he will give Russian plan a chance
12 Sep: US Secretary of State John Kerry meets Mr Lavrov in Geneva
13 Sep: Second round of Geneva talks to take place
Russia announced its proposal for
dealing with the escalating chemical weapons crisis on Monday, as the
US Congress was preparing to debate whether to back President Barack
Obama's moves towards military strikes.
The UN has confirmed it has received documents from Syria on
joining the Chemical Weapons Convention, a key step in the Russian plan.President Assad said data on chemical weapons would start to be passed to the UN after 30 days.
But Mr Kerry rejected this, saying such standard procedures were not relevant when chemical weapons had already been used.
Washington accuses the Syrian government of killing hundreds of people in a chemical attack in the Ghouta area of the capital, Damascus, on 21 August. The government denies the allegation, blaming rebels.
In an interview with Russian TV, President Assad cautioned that Russia's proposal was "not unilateral", adding: "Syria will accept it if America stops military threats and if other countries supplying the rebels with chemical weapons also abide by the agreement."
Syria's envoy to the UN, Bashar Jaafari, later said that "legally speaking", Syria was now a full member of the convention.
'Not a game' While UN chief Ban Ki-moon welcomed the application, the UN would not immediately confirm that it had been accepted.
Before Thursday's talks, Mr Kerry said the world was watching to see whether the Assad government would honour its commitments to give up its chemical arsenal.
"This is not a game. It has to be real, it has to be comprehensive, it has to be verifiable, it has to be credible, it has to be... implemented in a timely fashion. Finally, there ought to be consequences if it doesn't take place," he said.
Mr Lavrov said a "solution" to the chemical weapons issue in Syria would make any military strike by the United States unnecessary.
The US and Russia have sent large teams to Geneva that include weapons experts as well as diplomats.
If the talks in Geneva are successful, the US hopes the disarmament process will be agreed in a UN Security Council resolution.
However, Russia regards as unacceptable any resolution backed by military force, or a resolution that blames the Syrian government for chemical attacks.
Moscow has already objected to a draft resolution that would be enforced by Chapter VII of the UN charter, which would in effect sanction the use of force if Syria failed in its obligations.
Russia, supported by China, has blocked three previous draft resolutions condemning the Assad government.
More than 100,000 people have died since the uprising against President Assad began in 2011.
SOURCE: BBC