
(CNN) -- A Nigerian militant group has claimed responsibility after a car loaded with explosives rammed into the United Nations' building in the capital, killing 23, a government spokesman said Monday.
The suicide attack Friday shattered windows, set the building ablaze and left gaping holes on the walls.
Radical Muslim sect Boko Haram, which aims to enforce a strict version of Sharia law, has claimed responsibility, said Reuben Abati, the government spokesman.
Eighty-one people were injured, he said.
The attack targeted a building that housed 26 U.N. humanitarian and development agencies, U.N. Secretary-General Ban Ki-moon said last week. The Liberian and U.S. embassies are also nearby. "This was an assault on those who devote their lives to helping others," Ban said.
Nigerian President Goodluck Jonathan described the suicide bombing as "barbaric, senseless and cowardly" and intensified security around the capital.
The capital of Abuja has experienced a series of bombings in recent months.




