Israeli naval forces thwarted an attempt by Hamas militants to launch a seaborne attack against the Jewish state using a submersible, a military spokesman said Monday.

“Our naval troops together with air force intelligence and other forces were able to spot an attempt by what we suspect … was an attempt by operatives of the Hamas naval unit to deploy a submersible vehicle,” Lt. Col. Jonathan Conricus said.

“Most of the Hamas operatives were also killed,” he said, adding that the military was still assessing its action against the planned attack.

The Times of Israel published a video released by the Israel Defense Forces of the strike on the autonomous underwater vehicle in northern Gaza.

Asked by The Post about the size of the submersible, Conricus said it wasn’t a “small, toy-looking vehicle,” adding that it required a vehicle to be towed and had a large carriage.

He added: “We know that Hamas are constantly looking for ways to conduct these spectacular attacks against either military or civilian infrastructure.

“We know that this is how terrorist organizations operate and that’s why we are vigilant in the air, on the ground, everywhere in order to stop those attempts,” he said.

The spokesman also cited the group’s use of GPS-controlled, explosives-laden “killer” or “kamikaze” fixed-wing drones with a range of at least 60 miles against Israel.

Hamas has tried to use at least three such drones, all of which have been shot down by IDF planes and the Iron Dome aerial defense system, Conricus said.