Two opposition-controlled areas in the suburbs around Damascus , Syria were struck Attack by rockets containing the chemical agent sarin .

The UN investigation Scrutiny team confirmed Check `` clear and convincing evidence '' of the use Using of sarin delivered Sending by surface-to-surface rockets , and a 2014 report Reporting by the UN Human Rights Council found Know that `` significant quantities of sarin were used Using in a well-planned indiscriminate attack Attack targeting Aiming civilian-inhabited areas , causing Causation mass casualties Death .

The UN investigation Scrutiny team confirmed Check `` clear and convincing evidence '' of the use Using of sarin delivered Sending by surface-to-surface rockets , and a 2014 report Reporting by the UN Human Rights Council found Know that `` significant quantities of sarin were used Using in a well-planned indiscriminate attack Attack targeting Aiming civilian-inhabited areas , causing Causation mass casualties Death .