Palestinians said they felt "no joy" this Christmas as Israel bombed Gaza on Monday, with no end in sight to the war that Hamas says has claimed more than 20,000 lives. In the besieged Gaza Strip, the Hamas-run ministry of health said early Monday Israeli strikes had killed at least 18 people in the southern city of Khan Younis, the centre of recent fighting. Follow our live blog for the latest developments. All times are Paris time (GMT+1).