Police have arrested 15 people after weekend riots on the Indonesian island of Madura in which a Muslim crowd burned shops, a Protestant church and a Buddhist temple.

East Java police spokesman Colonel Sofwat Hadi says police are still investigating the cause of the disturbance.

At least one police officer was injured during the riot.

Witnesses say the riot in the town of Bangkalan occurerd after a service to commemorate the recent death of local Muslim leader Amin Imron.

Last month there was a riot in Bangkalan when thousands of supporters of the Muslim-backed United Development Party protested against alleged vote-rigging during Indonesia's national election.