More than 300 people have been killed and hundreds more injured as Israeli military forces hit dozens of targets across Gaza early on Tuesday, effectively ending the increasingly shaky ceasefire that had halted violence in the devastated Palestinian territory since mid January. Palestinian health authorities reported a total of 326 deaths by 9.30am local time, seven and a half hours after the strikes began. Israeli attacks were reported in northern Gaza, in Gaza City as well as in the central cities of Deir al-Balah and Khan Younis. One strike was reported to have killed 17 members of a family in