Two of the three attackers of the Mali tourist resort were killed, after they attacked the luxury resort popular with Westerners near Mali's capital city of Bamako.
The third gunman was missing after the attack on Le Campement resort, the CNN reported.
Three UN staff members were injured and taken to a hospital.
At least two tourists were killed and 32 others were rescued in the attack.
In an earlier statement, Mali's Ministry of Security and Civil Protection said the resort attack was carried out by "armed individuals, certainly terrorists." The statement said a Malian anti-terror force was on the scene.
"They [the armed men] exchanged gunshots with members of the special anti-terrorist force (FORSAT) who had arrived just a few minutes after the attack. FORSAT managed to secure the surroundings of the site. The operation to secure the premises is in progress," the statement added.