Nigeria, June 4 -- The United Nations (UN) says it has collated an estimated 1,366 incidents of explosive hazards in the past five years in Nigeria's Northeastern states of Borno, Yobe and Adamawa states.

The three conflict-torn states have seen devastating attacks by Boko Haram over the years.

Some of the incidents, according to the international organisation, are caused by the use of Improvised Explosive Devices (IED) by assailants.

The UN Resident and Humanitarian Coordinator, Edward Kallon, disclosed this at the Humanitarian Mine Action and Coordination Workshop, held in Abuja on Thursday.

At the event, the UN also launched a Gender Baseline Assessment report, themed 'Strengthening Explosive Ordinance Threat-Mitigation Capacities ...