The Nigerian army on Sunday said an exploded Improvised Explosive Device (IED) buried close to a military checkpoint alongside Bui-Damboa road in Borno state killed a soldier and four others.
Army spokesman Colonel Sani Usman said a tricycle (Keke Napep) at about 8.15am unknowingly stepped on the IED planted close to a military check point on the outskirts of Bui town.
He said the IED exploded instantly killing four persons comprising a woman with her baby and two male adults.
Usman said the three other persons injured including a soldier were immediately taken to Biu General Hospital.
He added that: "We regret to state that the injured soldier also died at the hospital."
He said the general area has been cordoned off and Explosive Ordinance Device (EOD) team from Forward Operation Base (FOB) in Buratai has been mobilized to carry out further search of the area.
He explained that preliminary investigation shows that the IED was buried a long time ago undetected.
Usman said it exploded when the tricycle mistakenly stepped on it.
He noted that this development has brought to the fore, the need for more security consciousness and vigilance among all.