(http://news.bbcimg.co.uk/media/images/74999000/jpg/_74999812_nigeriajoskano4640514.jpg) Meanwhile, the search for bodies is continuing in Jos following Tuesday's twin bombings that reduced buildings to rubble.
The attacks targeted a crowded market and a hospital, and the second blast went off 30 minutes after the first - killing rescue workers who had rushed to the scene.
Nigeria's President Goodluck Jonathan condemned the bombings, and said those who carried out the attacks were "cruel and evil".
His office said he was "fully committed to winning the war against terror".
He announced increased measures to tackle the militants, including a multinational force around Lake Chad which comprises a battalion each from Chad, Niger, Cameroon and Nigeria.
(http://news.bbcimg.co.uk/media/images/74991000/jpg/_74991503_464x2.jpg) Nigeria under attack
- 19 May: Suicide blast on a busy street in northern city of Kano kills four, including a 12-year-old girl
- 5 May: Boko Haram militants slaughter more than 300 residents in the town of Gamboru Ngala
- 2 May: Car bomb claims at least 19 lives in the Nigerian capital, Abuja
- 14 April: Twin bomb attack claimed by Boko Haram kills more than 70 at an Abuja bus station; the same day, the group abducts more than 200 schoolgirls from the remote northern town of Chibok
- 17 March: At least 20 people die in a suicide car bomb at a bus stop in Kano
(http://news.bbcimg.co.uk/media/images/74835000/gif/_74835252_civilian_death_in_boko_624.gif) (http://news.bbcimg.co.uk/media/images/74835000/gif/_74835253_nigeria_boko_attacks_624.gif)
Source: BBC.co.uk