Israeli troops shoot dead Palestinian at Gaza border- army
"Troops recognised a suspect who approached the security fence and attempted to sabotage it," an English-language army statement said, adding that they opened fire at the man.
He was given medical treatment but "later on, the suspect succumbed to his wounds," it added.
They said they did not know the circumstances of the shooting.
There have been regular protests along the border since March 30 as Palestinians demand the right to return to homes their families fled or were expelled from during the war surrounding the creation of Israel in 1948.
Israel accuses Gaza's Islamist rulers Hamas of manipulating the protests and of seeking to use them as cover to carry out attacks.
Israel said it would reopen the passage next Thursday providing the situation is calm.