A suicide car bomber has killed at least three people at a church in the troubled central Nigerian city of Jos, sparking retaliation by Christian youths.
Witnesses said the suicide bomber drove his car into the prominent Church of Christ during morning prayers.
The radical Islamist sect Boko Haram later said that it carried out the attack.
The bombing sparked a riot by Christian youths, with reports that at least two Muslims were killed in the violence.
President Goodluck Jonathan condemned the violence and appealed for calm.