At least 19 civilians have been killed in continuing clashes between the armed forces of the Philippines and Islamist insurgents in the city of Marawi, military officials say.

The bodies were discovered by advancing soldiers this weekend, reports the BBC.

The military is attempting to recapture Marawi, on Mindanao island, after it was recently overrun by jihadists.

Eight of the dead were found in a ravine outside the city, their hands tied and gunshot wounds to their heads.

The eight victims are believed to be carpenters who were part of an evacuation convoy stopped by rebels late on Saturday. They are believed to have been killed after they were unable to recite extracts form the Koran.

The Marawi region is a stronghold of the hard-line Maute group, which has pledged allegiance to so-called Islamic State (IS).

The Philippines, which is majority Catholic, has faced Muslim separatist movements for decades in Mindanao with its significant Muslim population.

The Maute group carries the black flag and insignia of IS, and like the better known Abu Sayyaf group has attacked both troops and civilians.

The battle for Marawi began five days ago when the security forces failed to capture Isnilon Hapilon, believed to be the main IS leader in the Philippines.

Most of the population of Marawi has left, but local officials believe as many as 2,000 are still trapped by the fighting.

About 60 militants and 15 members of the security forces have been killed since Saturday, the army says.

Militants last week seized a school, a hospital, and a cathedral where Christians are reported to have been taken hostage.

BDST: 2050 HRS, MAY 28, 2017
AP