Nigeria's president challenging Boko Haram to stop hiding, state its demands and start negotiating.

The Nigerian government is struggling to reassure people that it's in control. The sacking of the leadership of the country's police force, may go some way to restoring public confidence in the nation's security.

But there are fears the group may be plotting further attacks..

Al Jazeera's Yvonne Ndege reports from Kano, Nigeria,