BEIRUT (AP) — Syrian rescuers and a war monitoring group say 37 people were killed in airstrikes in a town in the eastern Ghouta region near the capital, Damascus, just hours before a cease-fire went into effect after midnight.

The rebel group Faylaq al-Rahman, one of at least three operating in the sprawling region, says intense government attacks targeted the area it controls on Thursday.

Rescuers, known as White Helmets, say the casualties were from an airstrike that hit an underground shelter in the town of Arbeen.

Rebel spokesman Wael Oweilan said Friday negotiations with Russia will follow to allow for the evacuation of civilians from the area.

A similar deal with another rebel group, Ahrar al-Sham, led to the evacuation of hundreds of fighters and civilians from Harasta, an eastern Ghouta town.