[https://mobile.twitter.com/KhaledAbuToameh/status/1401333927428640775 Jun 5, 2021]</ref><ref>[https://www.kan.org.il/item/?itemid=107439 Exclusive documentation: A Hamas tunnel was exposed at a UNRWA school in Gaza] Gal Berger, Kann News, June 10, 2021. | [https://mobile.twitter.com/KhaledAbuToameh/status/1401333927428640775 Jun 5, 2021]</ref><ref>[https://www.kan.org.il/item/?itemid=107439 Exclusive documentation: A Hamas tunnel was exposed at a UNRWA school in Gaza] Gal Berger, Kann News, June 10, 2021. |