Syria's ally, which wants to first see a report due to be released on Thursday on an April sarin gas attack in Khan Sheikhun before deciding on the fate of the inquiry

The UN Security Council will vote Tuesday on whether to extend an international investigation of chemical weapons attacks in Syria, diplomats said.

The measure is facing a possible veto from Russia, Syria's ally, which wants to first see a report due to be released on Thursday on an April sarin gas attack in Khan Sheikhun before deciding on the fate of the inquiry.

Source:AFP