The Israel Defense Forces claims to have discovered “the biggest Hamas tunnel” in Gaza, spanning a length of four kilometers (about 2.5 miles). The IDF said the tunnel, secured “a few weeks ago” but revealed to the public Sunday, is wide enough to drive a large vehicle through, reaches up to 50 meters (over 160 feet) underground and is equipped with electricity, ventilation and communication systems. It does not cross into Israel but ends 400 meters before the now-closed Erez crossing on the northern Israel-Gaza border, according to the IDF. The tunnel is part of Hamas’ “strategic infrastructure” and would be destroyed, the IDF said. In a video shared by the IDF, the Israeli military claimed the tunnel was created for Hamas troop movements and as a launching point for attacks.