Nigerian soldier kills aid worker, colleague at army base

A Nigerian soldier has opened fire at a military base in the north-eastern state of Borno, killing a fellow trooper and a humanitarian worker.

A UN helicopter pilot was severely injured.

The Nigerian army has confirmed the incident - a statement said the attacker had been shot dead.It also said the injured pilot was in a stable condition.

The motive for the attack was not immediately clear.

The Nigerian army says a "detailed investigation" into the "highly regrettable incident" has commenced.

For more than a decade now, Nigerian troops have been fighting an Islamist insurgency in the north-east of the country.

This article originally appeared on BBC News

Image: AFP