MAIDUGURI: At least 54 people were killed and 90 wounded in a multiple bomb attack in the northeastern Nigerian city of Maiduguri on Sunday evening, a police spokesman said on Monday. 'A suspected Boko Haram suicide bomber detonated IEDs (improvised explosive devices) at a mosque in Ajilari and some insurgents also threw IEDs at a viewing centre. Total casualty figure is now 54,' Victor Isuku, a police spokesman in Maiduguri, said. A Nigerian army spokesman said on Sunday that three bombs had gone off.