Four Palestinians have been found dead in a smuggling tunnel under the border with Egypt, Gaza medics said Sunday. Health official Dr. Moaiya Hassanain said the men suffocated to death from lack of oxygen in the cramped, makeshift tunnel. Local residents said they were smuggling food into the Strip. Hassanain said the men died Saturday, but were only found on Sunday. The body of one man killed in the same incident was retrieved on Saturday, making a total of five.