News: Boko Haram strikes again! Leaves dozens dead & injured in Borno

Are these Boko Haram insurgents not even tired?

Dozens have been killed and wounded in an attack by Islamist extremists in norteastern Nigeria, military sources say.

Boko Haram insurgents attacked Maiduguri, the biggest city in northeast Nigeria, home to more than 1million people, just after midnight on Sunday.

Government troops are now blocking roads to and from the city, putting several hundred thousand civilians 'at grave risk', Amnesty International says.

An officer involved in the fighting, said the extremists attacked on three fronts around Maiduguri early Sunday and dozens of fighters have been killed.

Military spokesman Chris Olukolade tweeted that 'coordinated air and land operations are being conducted now.'

Maiduguri has been attacked many times in Nigeria's five-year Islamic insurgency that killed 10,000 people last year.

Just hours after the attack on Maiduguri, another town in the state, Monguno, came under fire from Boko Haram militants.

Maiduguri is the capital of Borno state and would be a major prize for the Sunni jihadist group, which has killed thousands during their five-year insurgency to carve out an Islamic state in the northeast of Africa's most populous country.