
Three Islamist militant groups have claimed the strike

13 foreigners were killed in the attack, including six Russians, three Chinese, two Belgians, an American and a Senegalese

"Tonight the death toll is heavy."

It was not clear whether any of the gunmen were still active.

Al-Mourabitoun was formed around two years ago and based in the Sahara Desert.

At least three were killed by the gunmen