Jerusalem (CNN) -- Hamas officials in Gaza found the body of a fifth Palestinian militant Tuesday slain by Israel during a naval operation, officials said.
Iyad Raadi, a member of Al Aqsa Brigade of Palestine, was killed Monday.
Israel said it fired on the group of Palestinians in diving gear off the coast of Gaza. The statement by the Israel Defense Forces did not offer additional details other than to say that no soldiers were hurt.
Hamas security forces said the bodies of four other slain Palestinians were taken to a hospital.
Al Aqsa, the armed wing of Hamas' political rival Fatah, confirmed the men belonged to their organization, but accounts of what happened differed.
One Al Aqsa source said the five divers were attempting to smuggle themselves to Israel's Ashdod port for a kamikaze or a "suicide bombing mission. They were off Gaza's Nuseirath beach and more than 28 miles from Ashdod when the Israeli troops fired."
Another, Abu Walid al-Jabaree, said seven unarmed people clad in swim suits were performing a training mission when they were attacked in "cold blood." He said seven people were on the boat; four were killed, two survived and one was missing. Al-Jabaree didn't describe the training mission and said "we assure that all options are open to retaliate to this massacre, because it was only 100 meters offshore."
Israel's raid of boats carrying aid to Gaza last week cast a spotlight back on the Palestinian territory blockaded by Israel after Hamas took control. Nine Turkish activists were killed by Israeli commandos aboard one ship in the aid flotilla.