A convoy conveying officials of the Borno State Government has been attacked near Monguno town.
The officials were on their way to Baga, where Governor Babagana Zulum is expected to receive returning civilians.
It is still uncertain what the real casualty figure is, but sources say at least five security men might have been killed in the ambush.
Reports suggest that the casualties include both police, military personnel, and an unspecified number of civilians.
An Armoured Personnel Carrier belonging to the police as well as state government vehicles were reportedly seized in the attack.
Governor Zulum had flown in an Airforce chopper to Baga earlier today, where he performed the Friday prayers with troops.
The governor is expected to receive about three thousand civilians who will be transported from IDP camps both in Maiduguri and Monguno on Saturday.