TUNIS, Tunisia (AP) -- Tunisia's leader says the hunt is on for a third attacker in the deadly assault on the Bardo musum.
President Beji Caid Essebsi says the attack involved "three aggressors" and the third man escaped.
Essebsi spoke Sunday with French TV network iTele from inside the Bardo, where gunmen killed 21 people -- mostly foreign tourists -- before two Tunisian attackers died in a shootout with security forces.
Tunisia's Interior Ministry released security camera footage of Wednesday's attack showing two gunmen walking through the museum, carrying assault rifles and bags.
At one point they encounter another man with a backpack walking down a flight of stairs. They briefly acknowledge each other before they walk in opposite directions.