(Adds details, Islamic State claim, quotes)
ABUJA, June 23 (Reuters) - West African troops killed 42
suspected Islamic State fighters in a battle in the Lake Chad
region on June 21, the heaviest death toll suffered by the
insurgents in the last six months, a regional military task
force said in a statement.
The Multinational Joint Task Force (MNJTF) comprising troops
from countries bordering the lake - said one of its soldiers was
killed and 10 others were injured.
In an apparent reference to the same clashes, Islamic State
said its fighters had killed 15 soldiers in fighting on June 21
at Garno, a town in Nigeria's northeastern Borno state near Lake
Chad. It said a suicide bomber detonated an explosive device but
did not refer to any of its fighters having been killed.
Islamic State West Africa Province (ISWAP) was formed in
2016 when a faction of Nigerian Islamist group Boko Haram
pledged allegiance to Islamic State. The insurgency has affected
countries that border Lake Chad - Nigeria, Niger, Chad and
Cameroon, as well as islands on the lake itself.
The MNJTF said in a statement issued on Saturday that "42
terrorists (were) neutralized" during fighting on and around a
Lake Chad island called Doron Naira. It said it meant it had
"inflicted the heaviest loss in 6 months on ISWAP".
Islamic State, in a statement issued through its Amaq news
agency, said: "Fifteen African coalition soldiers were killed
and others injured when Islamic State fighters attacked them."
The insurgency, which began in northeast Nigeria, has killed
more than 30,000 people and displaced about 2 million since
2009.