From Arutz-7:
A Hamas terrorist tunnel was discovered under a school in Gaza run by the United Nations Relief and Works Agency for Palestine (UNRWA), Israeli media reported on Friday.COGAT points to the Facebook page of the Maghazi Boys Prep School B in Gaza. The page hasn't been updated since 2014.
The tunnel was discovered a week and a half ago, according to the reports.
The Coordinator of Government Activities in the Territories, Maj. Gen. Yoav Mordechai, confirmed the discovery of the tunnel in a post on his Facebook page in Arabic.
“The tunnel was discovered underneath a school for boys in Al-Maazi...It is clear that the entire Arab world understands that it is the Hamas terror organization that destroys Gaza and eliminates any chance of a good future for Gazans,” wrote Mordechai.
Israel’s Ambassador to the United Nations Danny Danon reacted harshly to the revelation of the existence of the terror tunnel.
“This tunnel verifies what we have always know, that the cruelty of Hamas knows no bounds as they use the children of Gaza as human shields. Instead of UN schools serving as centers of learning and education, Hamas has turned them into terror bases for attacks on Israel,” said Ambassador Danon.
The school also had its own UNRWA school webpage, but UNRWA took all of those down after I discovered that they sometime posted antisemitism.
I don't know if UNRWA discovered this or it was discovered some other way. Waiting to hear the statement from UNRWA about this.
UPDATE: UNRWA condemned it, and the condemnation was not bad, mentioning Hamas by name.