Arrests after Nigerian violence
Nigerian police in the northern state of Jigawa have arrested 25 youths after violence erupted between Muslims and Christians in the state capital, Dutse.

At least four churches and dozens of shops were set on fire.

The state authorities believe the trouble began when a Christian market trader insulted the Prophet Muhammad in the presence of a Muslim customer.

Protestors gathered outside the palace of the chief official in the district, demanding the woman be punished.

A curfew has been imposed in the city.

Police used teargas to disperse the demonstrators, which provoked riots.

A number of people were injured - all but one of them have now been discharged from hospital.