BEIRUT (Reuters) - An explosion killed the leader of one of Syria's most powerful Islamist insurgent groups Ahrar al-Sham on Tuesday, the group said, and an organisation that monitors violence in the civil war said at least 28 of its commanders had died.
Ahrar al-Sham is a hardline Islamist group and part of the Islamic Front alliance that has been in armed conflict with the Islamic State group which has seized swathes of territory in Syria and Iraq.
