Nigeria's president vowed to bring terrorism "under control" as he visited the bombed headquarters of the United Nations in his country, a day after at least 19 people died in an attack claimed by a radical Muslim sect.
President Goodluck Jonathan walked amid the debris left behind after Friday's attack in Nigeria's capital, Abuja.
Mr Jonathan toured the shattered reception area of the building, where a suicide bomber crashed an explosive-laden car before detonating his bombs.
He promised to address the threat posed by the sect known locally as Boko Haram, though so far his weakened government has been unable to stop the group from carrying out assassinations and bombings at will in Africa's most populous nation.
"Boko Haram is a local group linked up with terrorist activities," Mr Jonathan told journalists gathered at the site. "As a government, we are working on this and we will bring it under control."
The president did not elaborate on the statement as his aides hustled him off into a convoy of armoured Mercedes Benz sedans, police trucks and motorcycles.
Security appeared tighter than normal in Abuja, about 550 miles from the country's megacity of Lagos.
Soldiers wearing flak jackets blocked the main highway heading into the city from Abuja's international airport this morning, checking passing vehicles.
At the UN building, soldiers, police and members of Nigeria's secret police cordoned off the area, looking out at the nearby embassies and buildings, some with broken windows from Friday's blast.
The UN headquarters sits on a hill overlooking the same neighbourhood occupied by the US embassy and other diplomatic posts in Abuja. A US embassy car carrying what local authorities described as FBI agents arrived at the bomb site a short time after Mr Jonathan left.
The Press Association, photo by mr alvaro