UN rights chief ‘horrified’ by mass grave reports at Gaza hospitals ReutersMiddle East crisis live: UN rights chief ‘horrified’ by mass grave reports at Gaza hospitals The GuardianPalestinians claim to ‘discover’ mass grave at Gaza hospital, falsely blame Israel The Times of IsraelNearly 300 bodies found in mass grave at Gaza hospital, says Gaza Civil Defense Yahoo! VoicesIsrael Gaza news: UN ‘horror’ at mass grave at hospitals as US says Hamas ‘moved goalpost’ over ceasefire The Independent