Israeli airstrikes hit convoys leaving Gaza City on Friday, killing dozens of people and injuring hundreds more, according to Hamas. The UN estimates that tens of thousands of Palestinians have fled their homes in northern Gaza after Israel warned them to leave within 24 hours on Friday. The Israeli military has been pounding Gaza with airstrikes in retaliation for Hamas’s unprecedented attack on Israel last week, in which more than 1,300 people were killed Palestinians flee northern Gaza before expected Israeli ground invasion What are the roots of the Israel-Palestine conflict? Israel-Hamas war - latest news updates