The Tunisian public prosecution has opened an investigation into the terror attack that targeted tourists in two hotels in the coastal city of Sousse city, which left 39 dead and 40 others injured.

The public prosecution inspected the crime scene and bodies of the victims and the the attacker, spokesman for the court of first instance Sofian al Saleety said.

At least one gunman, identified as Saif al Din al Rezqi, disguised as a vacationer attacked the placid Mediterranean resort on Friday before he was shot to death by the security forces.

The attack sent shock waves through the country, which was still recovering from the massacre of mostly foreign tourists at a museum in the capital in March.