The north of Nigeria has been hit by a series of bomb attacks. In one of them at least four children were killed when a device exploded near a church.
That blast came just hours after a suicide bomber targeted a police station in the capital, Abuja, killing two people.
Authorities said an Islamist sect known as Boko Haram was responsible for the attacks.
Al Jazeera's Yvonne Ndege reports from Abuja.
Source: Al Jazeera