Nigeria's president tried to reassure the country a day after a suicide bomb hit one of the country's bastions of security.
Goodluck Jonathan on Friday said "security agencies are on top of the situation." Jonathan spoke to reporters as he stood in the wreckage left behind after an explosion in the parking lot of the national police headquarters.
Police say a suicide bomber drove into the parking lot Thursday morning and set off a bomb, leaving at least two dead and several injured.
The Nigerian Red Cross says the blast left dismembered bodies, making the number of casualties "unquantifiable."
A man claiming to speak for a radical Muslim sect locally known as Boko Haram told the local paper Daily Trust and the BBC's Hausa language service Thursday evening that the group was responsible.