The Philippines army says US special forces are helping them to retake the southern city of Marawi from IS-linked militants.

A mother mourns her 15-year-old son, killed by a stray bullet during afternoon prayers in Marawi, southern Philippines, where heavy fighting continues more than two weeks after hundreds of militants waving the black Islamic State (IS) group flag rampaged through the city, seizing parts of it.

Philippine marine troops seize arms and ammunition from the Islamic state group in Marawi, as fighting between government forces and Islamist militants continue.

The Philippines military says the week-long assault by Islamist rebels in the city of Marawi is fueled by stolen guns and freed prisoners.

The Philippines mobilises attack helicopters and special forces to drive Islamic State-linked rebels from the besieged city of Marawi, as hundreds of residents flee.