At least 16 people have been killed and dozens more injured in a suicide bomb in the city of Kaduna.
A senior police officer said his men were pursuing a suspect vehicle when it crashed into another car and caused a massive explosion.
No group has as yet claimed responsibility for the attack. Its alleged the bomb was meant for a church with eye witnesses saying the bomber had tried to enter the building. The Islamist militant group, Bokum Haram carried out a series of deadly bombings in Nigeria last Christmas.
Nigeria’s population of more than 160 million is split almost equally between the Christian south and mainly Muslim north.
Coordinated attacks by Boko Haram killed 186 in January in Nigeria’s second biggest city Kano. Among its demands it wants Islamic law applied throughout the country. The Pope condemned, “savage terrorist attacks” against Christian churches in Nigeria in his Easter message.