Top inspector delivers final report to UN chief on alleged use of chemical weapons in Syria

The chief U.N chemical weapons inspector has handed his final report on the alleged use of chemical weapons in Syria to Secretary-General Ban Ki-moon.

Ake Sellstrom presented the report to the U.N. chief late Thursday afternoon.

Sellstrom issued an initial report on Sept. 16 saying there was "clear and convincing evidence that surface-to-surface rockets containing the nerve agent sarin were used" in an Aug. 21 attack in the Ghouta area of Damascus.

Diplomats said the report is expected to cover six other alleged chemical weapons attacks — three before Aug. 21 and three afterward at sites reported by the Syrian government.

The confirmed use of chemical weapons in Ghouta, and the threat of possible U.S. military action, led to a U.S.-Russian agreement to eliminate Syria's chemical weapons.