Islamic State group claims deadly attack in Niger

• The Islamic State group on Tuesday claimed responsibility for an attack on an army base in western Niger on January 9.
• "The mujahideen then returned to their positions," it said.
• France has a 4,500 military mission in the Sahel, to which 220 more soldiers will be sent to help train local forces, President Emmanuel Macron announced.

"Clashes took place, lasting for several hours, with light, medium, and heavy weapons, which led to killing 100 elements and wounding others," according to a message by the Islamic State's West Africa Province (ISWAP) translated by SITE.

"The mujahideen then returned to their positions," it said.

Niger on Sunday said 89 of its troops and 77 assailants died in the raid on the base at Chinegodar.

It was the biggest one-day loss in the history of Niger, an impoverished country in the heart of the Sahel region which is struggling with a mounting Islamist insurgency.

According to UN figures, militant attacks in Burkina, Mali and Niger last year left 4,000 dead.

The attack on Chinegodar was carried by highly mobile assailants who arrived in vehicles and on motorbikes.

It occurred in the same region, Tillaberi, where 71 soldiers were killed last month.

Niger declared three days of national mourning after the Chinegodar losses and carried out a top-rank military reshuffle, replacing the chief of the armed forces and the head of the army.

On Monday, France and five partners in the Sahel -- Burkina Faso, Chad, Mali and Mauritania as well as Niger -- vowed to step up their efforts against the revolt.

France has a 4,500 military mission in the Sahel, to which 220 more soldiers will be sent to help train local forces, President Emmanuel Macron announced.