Five vehicles and a large amount of weapons have been seized, according to a statement from the department of defense.
Friday's arrest was the second attack in a short time after several months without major extremistdåd in the area around lake chad. On 16 February killed seven soldiers in an attack near the border with Nigeria.
the authorities of Niger's armed forces have killed nearly 300 members of the Boko Haram.
Boko Harams bloody rebellion against the government started in 2009 in northeast Nigeria, but has spread into several neighbouring countries. Over 20 000 people have lost their lives and over two million have been displaced.