In pictures: Kano riots

1 of 9 Christians have been arriving at police compounds seeking refuge after Muslim youths rioted for two days in the northern Nigerian city of Kano.

2 of 9 Blessing Adaiyi made it to the Bompai police barracks, but was informed that her sister had been killed in the violence.

3 of 9 Parts of Kano were left in disarray after the second day of rioting.

4 of 9 Christians were targeted in revenge for an attack by Christian militias elsewhere in Nigeria last week. Some fled their homes...

5 of 9 ... because they were set on fire in this mainly Muslim city.

6 of 9 On Thursday firefighters were still trying to put out some fires - this one at a branch of the central bank.

7 of 9 Soldiers and armed police were deployed when the violence began on Tuesday. They imposed an overnight curfew but were unable to stop the trouble breaking out again.

8 of 9 Muslim leaders and President Olusegun Obasanjo have appealed for calm.

9 of 9 But some Muslim leaders say the government must take action against the Christian militia who killed hundreds of Muslims in Yelwa last week, or Muslims will take matters into their own hands.