Abuja - Twin bomb blasts on Thursday rocked Jos, the capital of Plateau state in north-central Nigeria, killing at least 31 people, the newspaper Vanguard reported.
Reports said the bombs exploded at a makeshift market near a busy motor park and a fast food restaurant.
"The bodies recovered so far are 31, but rescue workers are at the scene and the figures may change," Vanguard quoted a spokesman for Plateau state governor as saying.
The city lies in an area where Nigeria's mainly Muslim north meets the mostly Christian south. It has set the stage for ethnic clashes and has also been targeted by the radical Islamist group Boko Haram.
Meanwhile in Kano, also in the north of the country, a 13-year-old girl was arrested with explosives hidden under her clothes, Vanguard said.
The girl and a male companion had aroused suspicions when walking into a clinic to seek treatment, a senior security source was quoted as saying.
The clinic was located at just 20km from the scene of an attack by two female suicide bombers on a textile market that killed six people hours earlier.
Boko Haram is increasingly using girls and women as suicide bombers. The group has killed more than 4 000 people in northern Nigeria this year alone.
