Israeli forces have reportedly uncovered a network of tunnels running deep beneath central Gaza City from properties registered to Yahya Sinwar and other senior Hamas organisers of the Oct. 7 attacks on Israel, Reuters quotes the military as saying.

The tunnels were found when soldiers secured a central area of the city in recent days, spokesperson Lt. Col. Peter Lerner told reporters.

Accessed by spiral staircases and an elevator up to 20 meters (66 ft) below ground, the tunnels were kitted out with electricity, plumbing, surveillance cameras and heavy blast doors, according to images shared with reporters by the military.

“This complex, both above and below ground, was a centre of power for Hamas’ military and political wings,” Lerner said. Reuters could not independently verify the information provided.