Updated

Niger's government says its military has retaken control of the island of Karamga in Lake Chad after an attack by Boko Haram on its positions there.

In a statement Monday, Niger's government said its security and defense forces have cleared the enemies from the island. Suspected Nigerian Islamic extremists attacked an army base on the island last week, Niger's defense ministry had said Saturday night.

Niger joined a regional offensive in January that has been credited with retaking large swaths of territory from the Nigeria-based militant group Boko Haram. A February attack on Karamga killed seven Nigeran soldiers, and Niger towns bordering Nigeria have also been targeted.

Military forces started retaking towns in February from Boko Haram, whose fighters had months of gains.