Four people have been killed in an explosion at a Catholic Mass in the southern Philippines on Sunday morning. ISIS has claimed responsibility.

The incident occurred at the gymnasium of Mindanao State University in Marawi, the country’s largest Muslim city.

Forty-two others suffered mostly minor wounds, authorities said, adding the situation was “under control”.

In 2017, Marawi was the scene of a five-month battle between government forces and militants with links to the Islamic State group.

The Daulah Islamiyah-Maute Group could be behind Sunday’s bombing, said Brig Gen Allan Nobleza, the police commander in the region.