At least 44 people were killed in twin bomb blasts in the central Nigerian city of Jos, the country's main relief agency said.
Earlier, police in Plateau state, of which Jos is the capital, said at least 18 people had lost their lives in last night's attacks at a shopping complex and near a popular mosque.
There was no immediate claim of responsibility for the attacks but religiously divided Jos has been targeted before by the Islamist militants.
Plateau, which falls on the dividing line between Nigeria's mainly Christian south and mostly Muslim north, has also seen waves of sectarian violence that has killed thousands over the last decade.
Meanwhile, a blast went off in Kano, Nigeria's second-biggest city, late this evening, a witness and local television station said.
The witness, a local journalist, said the explosion occurred near a major mosque. It was not immediately possible to verify the number of casualties.
Boko Haram has stepped up its attacks in northern Nigeria since the inauguration of President Muhammadu Buhari in May, with a wave of raids, explosions and suicide bombings.
