"The head of UNRWA, Philippe Lazzarini, said the agency” did not know what is under its headquarters in Gaza”, which he pointed out had been abandoned since an Israeli order to evacuate in October. He said that in times of relative peace, UNRWA inspected its premises every quarter, and always protested if its neutrality had been violated."
Well Philippe Lazzarina, it wasn't built between Oct 7th and and now. A subterranean data center complete with an electrical room, industrial battery power banks and living quarters for Hamas terrorists operating the computer servers, built precisely under the HQ