An Israeli airstrike killed at least 12 Lebanese rescue workers on Thursday inside a civil defense center in the eastern city of Baalbek, according to health and rescue officials, hours after state media in Syria said Israeli strikes in and around the capital killed at least 15 people.

Lebanese emergency workers were digging through the rubble on Thursday evening to search for more of their colleagues still trapped under the destroyed rescue center, the group said in a statement. At least three civil defense members were wounded.