MAIDUGURI: Boko Haram carried out its deadliest attacks on the key northeast Nigerian city of Maiduguri since President Muhammadu Buhari came to power, killing scores in a series of coordinated bomb blasts.

Police in the Borno state capital said at least 54 people died in Sunday's co-ordinated strikes, with 90 injured, but residents caught up in the explosions said as many as 85 lost their lives.