At least 23 people were killed on Sunday, including seven civilians, and dozens injured after a powerful explosion aimed against the headquarters of an Islamic insurgent group in the city of Idlib, in northwestern Syria, according to the Syrian Observatory for Human Rights. Amongst the injured there are serious and critical cases, which could increase the death toll in the next few hours, the Syrian Observatory for Human Rights warned. The cause was not clear but many believed a car bomb was responsible. The monitor said there were conflicting accounts, attributing the explosion that shook the Thalatheen district of the city to either a car bomb or a drone attack. At least 23 killed in explosion in Syria’s Idlib, war monitor says (VIDEO)

File picture of children walking past debris from damaged buildings in Idlib.Idlib province is a stronghold of rebels in Syria and is situated on the border with Turkey, one of the main backers of rebellion against President Bashar al-Assad.
An explosion at the headquarters of the Chechen-led Ajnad al-Kavkaz rebel group in Idlib, Syria, kills at least 23 people, while several people remain unaccounted for, according to the Syrian Observatory for Human Rights.