Heading into second day of hastily arranged talks with his Russian counterpart Sergei Lavrov in Geneva, US Secretary of State John Kerry said the two sides were "deeply committed to a negotiated solution" to the Syrian conflict.
Hailing the first round as "constructive", Kerry said he and Lavrov were "working hard to find the common ground to be able to make that happen".
The plan, proposed by Russia this week and supported by Syria's allies, is aimed at averting any US-led military strike against the embattled Assad regime, which the US holds responsible for killing over 1,000 civilians in an alleged chemical weapons attack in a Damascus suburb on August 21.
The talks are meant to come up with a draft plan on how and when Syria will hand over its cache of chemical weapons.
Secretary-General Ban Ki-moon received a letter from the Government of Syria, informing him that President Bashar al-Assad has signed a legislative decree providing for accession of Syria to the Convention, a UN statement said.
In their letter, the Syrian authorities have expressed their commitment to observe the obligations entailed by the Convention even before its entry into force for Syria, said a spokesman of the Secretary General.
Ban welcomed this development, noting that, as depository of the Convention, he has long called for universal accession to the Chemical Weapons Convention.
