A car bomb detonated near Aleppo on Monday, killing several people, mostly women, according to Syrian Civil Defense and a human rights monitor.

Another car bomb exploded on the outskirts of a city in northern Syria on Monday, killing at least 19 people and leaving over a dozen wounded, hospital workers and emergency responders said. Eighteen women and one man were killed,

The blast, which detonated next to a truck carrying agricultural workers, underscored the challenges faced by the country’s interim president.