BEIRUT (AP) — Syria launched a series of airstrikes targeting a stronghold of the Islamic State extremist group on Saturday, killing at least 29 people, most of whom died when one of the missiles slammed into a crowded bakery, activists said.

The eight airstrikes smashed parts of buildings, set cars alight and crushed people under rubble in the northeastern city of Raqqa, which is ruled by the extremist group, according to video of the aftermath uploaded to social media networks.