At least 100 people were killed and about 150 others injured in four coordinated bomb attacks in Nigeria's Borno state on Sunday evening. The suspected Boko Haram militants targeted a mosque, a market and a soccer viewing center in Borno's state capital Maiduguri, reported VOA News.

"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," Borno state police spokesman Victor Isuku said on Monday, according to Leadership Nigeria.

Isuku said a female suicide bomber blew herself up in the Ajilari Cross Everning Market in the Ngomari area of the city, killing several shoppers. The second bomb was detonated inside a mosque while a third bomb attack occurred inside a football (soccer) viewing center, according to Xinhua.

"The four explosives were planted by the fleeing suspected terrorists from Sambisa Forest. They could have sneaked into these areas about a week or two to plant these bombs in this mosque and other soft targeted areas of a local market and other strategic locations," an eyewitness told Guardian Nigeria.

No group has claimed responsibility for the fatal bombings, but suspicion has fallen on Nigeria-born Islamic jihadist outfit Boko Haram, reported Associated Press. The Nigerian military said the bombings were an act of desperation from Boko Haram as government forces had made significant successes against the militant group in recent months.