Riots have broken out across northern Nigeria as presidential poll results show Goodluck Jonathan is set to win.
Homes of supporters of Mr Jonathan, the incumbent, were attacked in the cities of Kano and Kaduna.
Young supporters of Muhammadu Buhari, who is popular in the north, have been clashing with police and military. They feel that the elections have been rigged in some areas of the south.
There are unconfirmed reports that people have died in the violence.
President Jonathan has called for an end to the disturbances, saying “no-one’s political ambition is worth the blood of any Nigerian”.
With nearly all the votes counted, People’s Democratic Party (PDP) candidate Mr Jonathan – a Christian from the oil-producing Niger Delta – has almost twice the number of his main rival.
The African Union observer team said it was Nigeria’s best poll for decades.
Mr Jonathan was appointed to the presidency last year upon the death of incumbent Umaru Yar’Adua, whom he had served as vice-president. He staked his reputation on the election, repeatedly promising it would be free and fair.
In Kano, the largest city in in the north, homes displaying posters of Mr Jonathan were set on fire, and gangs of young men roamed the streets shouting “Only Buhari!”
In Kaduna, where a 24-hour curfew has been declared, election monitors say that shops are closing and people are fleeing to their homes through streets barricaded with burning tyres. Youths are clashing with the police and military in areas to the north and south of the city, with the security forces firing tear gas and live ammunition.
Local TV stations are reporting that the Kaduna home of Mr Jonathan’s running mate, Vice-President Namadi Sambo, has been set on fire. They say the city’s central prison has been attacked and inmates released.
A lawyer travelling through Kaduna told the BBC’s Focus on Africa he had escaped from a mob in the city. He said youths armed with clubs and machetes were targeting people who did not look like they were indigenous to the north.
“My car was damaged [and] the windscreen was broken,” he said. “I told my driver… to start the car and take off and at that point they smashed the car. We managed to get away.”
In the central city of Jos, there is rioting in the Gangare area to the north of the city.
There are also reports of violent protests in the states of Gombe, Adamawa, Katsina and Sokoto.
And there are fears for the safety of the revered religious leader, the Sultan of Sokoto, who is now facing angry criticism over his support for President Jonathan.
Source: BBC News