A committee formed by Syria's new authorities to investigate a wave of deadly violence said on Tuesday the country was determined to "prevent unlawful revenge."

A wave of violence broke out last Thursday, mainly in the Mediterranean heartland of the Alawite minority, the deadliest since longtime strongman Bashar Assad was ousted in December.

Security forces and allied groups have killed at least 1,225 civilians since Thursday, according to the Syrian Observatory for Human Rights war monitor.