NIAMEY, May 13 (Reuters) - Nigerien and allied forces from
neighbouring states killed 75 Boko Haram insurgents in security
operations earlier this week in the region where the borders of
Niger, Nigeria and Chad converge, Niger's defence ministry said.
The Islamist Boko Haram insurgency erupted in northeastern
Nigeria in 2009 and continues to grind on, with attacks
frequently spilling over into Chad, Niger and Cameroon a little
further to the south.
The operations on Monday followed a series of Boko Haram
attacks on military positions near the southeastern Nigerien
border town of Diffa, the ministry said in a statement late on
Tuesday.
It said 25 insurgents were killed in fighting around 75 km
(46.6 miles) south of Diffa and a further 50 in air and
artillery strikes by joint Nigerien, Nigerian and Chadian forces
in the Lake Chad area.
It added that weapons were seized and a logistics base used
by the insurgents destroyed.
The U.N. refugee agency said on Tuesday violence in
northwestern Nigeria had forced about 23,000 people to flee into
Niger since April and raised concerns about the deteriorating
security situation in that region.