Kano, Nigeria:
A blast ripped through a bus station in Kano, northern Nigeria, as passengers boarded buses out of the city, witnesses said.
Explosives, apparently concealed in a bag that was abandoned by two men disguised as travellers, went off at about 3 pm (1500 GMT) at the New Motor Park in the predominantly Christian Sabon Gari neighbourhood of the city.
There was no immediate indication of the number of casualties, people at the bus station told AFP.