Syria has completed the handover of an inventory of its chemical arsenal by a Saturday deadline laid out in a US-Russian disarmament plan, the world's chemical weapons watchdog said.

The "OPCW has confirmed that it has received the expected disclosure from the Syrian government regarding its chemical weapons programme," the Hague-based Organisation for the Prohibition of Chemical Weapons said in an email received by AFP. "The Technical Secretariat is currently reviewing the information received."