It was located during Israel’s efforts to unearth all of Hamas’ arms-smuggling routes across the ‘Philadelphi Corridor’ that defines the Gaza-Egypt boundary, 25 of which have been found to cross directly into Israel’s Western neighbour. The IDF did not comment on whether the tunnel led to Egypt.

The concrete-fortified passageway was found less than 328ft from the border fence and makes up part of Hamas’ subterranean labyrinth stretching some 310 miles.

Mending of the ‘Gaza metro’ has already begun in Khan Younis, with terror groups operating across the remaining tunnels which operate in a “good functioning state”. 80 percent of the network was thought intact in January, according to officials.