Iranian military adviser killed in Syria in Israeli attack, Iran's news agency SNN reports
Tehran's influence has grown since it began supporting President Bashar al-Assad in the civil war that started in 2011.
Smoke rises after airstrikes on a rebel-held part of the southern city of Deraa, Syria, June 15, 2017 (illustrative).(photo credit: REUTERS/ALAA AL-FAQIR)Updated: