Syria has submitted a declaration on its chemical weapons and plans to destroy them, meeting the first key deadline of a programme of their total elimination.
The Organisation for the Prohibition of Chemical weapons (OPCW) said the declaration was submitted three days ahead of schedule.
The OPCW's mission was set up following outrage at a chemical weapons attack near the Syrian capital in August, the BBC reports.
Sixty inspectors have been in Syria since 1 October and its staff had on Friday visited 19 of 23 weapons sites declared by Syria.
Under the UN resolution which set up the mission, Syria's chemical weapons production equipment must be destroyed by 1 November and stockpiles must be disposed of by mid-2014.
The chemical attack on the Ghouta agricultural belt around Syria's capital, Damascus, on 21 August was was estimated to have killed hundreds of people.
The United States and other Western powers blamed the attack on President Bashar al-Assad's forces but Mr Assad accuses Syrian rebels of being behind it.
