The U.S. Defense Department has released the names of the three Marines killed when an improvised explosive device was detonated near Bagram Air Base near Kabul in Afghanistan on Monday.

Staff Sgt. Christopher K.A. Slutman, 43, of Newark, Delaware; Sgt. Benjamin S. Hines, 31, of York, Pennsylvania; and Cpl. Robert A. Hendriks, 25, of Locust Valley, New York were killed by the blast.