Civilians trapped by Isil-affliated groups in the besieged Filipino city of Marawi are being forced to join the fighting, loot and become sex slaves to militants, the army said on Tuesday.

According to recent escapees, hostages inside Marawi were being forced to convert to Islam, carry wounded fighters and marry terrorists from the Maute group, who invaded the city last month, said military spokesman Jo-Ar Herrera.

“They are being forced to be sex slaves, forced to destroy the dignity of these women,” he said.