Nigerian officials say bomb blasts in two bustling bus stations have killed 29 people and wounded 105 in the northeast.

National Emergency Management Agency spokesman Sani Datti said at least 29 people died in Wednesday night's explosions in Gombe. The agency called for urgent blood donations to treat the injured.

The latest in a series of deadly attacks by Islamic extremists comes as the West African nation's new president warned that the U.S. refusal to sell strategic weapons is hampering Nigeria's fight against Boko Haram.

President Muhammadu Buhari while in Washington urged the U.S. president and congress to be more flexible about a law prohibiting weapons sales to countries whose soldiers are accused of gross human rights violations.

Buhari said the Leahy Law is aiding Boko Haram in its crimes.