The four were killed Saturday when gunmen came out of a tunnel in a destroyed building and opened fire at troops carrying out a patrol along the IDF’s logistics route in Khan Younis, according to an initial military probe. The operatives apparently managed to flee back into the tunnel.

A tank came under RPG fire from another cell in the area, though there were no injuries in that attack. The tank returned fire, killing members of the second cell, according to the IDF’s probe.