Nigerian President Goodluck Jonathan has made a nationwide address calling for an end to the violence that has followed his victory in last Saturday's presidential election.
Sectarian attacks have led to tens of thousands of Nigerians fleeing their homes, and the president has condemned those responsible.
He compared the deadly post-election unrest in the north of the country to events that led to the 1967 civil war, the BBC reports.
President Johnathan said security has been reinforced nationwide to quell the violent reaction in the north to the results of the presidential election.
Police in Kaduna say 32 people have been killed in the last few days although independent sources put the number at up to 200 and tens of thousands of people have fled their homes.
The president said state elections would go ahead as planned next week despite the violence.