Gaza medics say four Palestinians have been found dead in a smuggling tunnel under the border with Egypt.
Health official Dr. Moaiya Hassanain said the men suffocated to death from lack of oxygen in the cramped, makeshift tunnel.
Local residents say they were smuggling food into the Strip, which has been under a crippling blockade since the violent Hamas movement seized control there in 2007.
Hassanain said the men died Saturday, but were only found on Sunday.
The body of one man who died in the same incident was retrieved on Saturday, making a total of five.