At least six people are dead and dozens wounded in two attacks on Christian worshippers in Nigeria.
Officials and witnesses say a suicide car bomber detonated his explosives outside a church in the central city of Jos (jahs).
Witnesses say angry youths later surrounded the area, striking back against Muslims in retaliatory violence.
Police and the military say four people and the suicide bomber were killed, and more than 40 others were wounded.
Officials say two other people were killed when gunman attacked a church in northeastern Nigeria.
Christian churches in Nigeria have been targeted almost every weekend this year.
A radical Islamist sect known as Boko Haram (BOH'-koh hah-RAHM') claims it carried out today's attacks. The group is blamed for killing more than 560 people this year, according to an Associated Press count. Its targets have included churches, police stations and other security buildings.