The Gaza Civil Defense announced that three Palestinians were killed in the attack carried out by the Egyptian army on the smuggling tunnels that links the strip with the Egyptian side of Rafah city, Al-Bawaba news reported on Wednesday. The statement of Gaza authorities approved Hamas's involvement in the smuggling tunnels on the Egyptian borders, after the ruling group of Gaza. long denied any relation to these tunnels. Egypt has launched a military campaign to destroy all the smuggling tunnels used by the Sinai militants to smuggle weapons and Jihadists to into the Sinai Peninsula, through pumping sea water to flood the tunnels.