AAP Bomb conflict.attack.bombing blasts have killed more than 100 people in the Syrian coastal cities of Jableh and Tartous , monitors said , in a government - controlled area that hosts Russian forces . Islamic State claimed responsibility for the attacks in the Mediterranean cites that have up to now escaped the worst of the conflict , saying it was targeting supporters of President Bashar al - Assad . Scores were wounded in at least five suicide attacks and two car bombs , the Syrian Observatory for Human Rights said , the first assaults of their kind in Tartous , where government ally Russia maintains a naval facility , and Jableh .