Hamdi Al-Najjar, himself a doctor, was at home in Khan Younis with his 10 children when an Israeli air strike occurred, killing all but one of them.

Joseph Neumeyer, 28, was detained in Israel after the attack and deported to the United States, where he was arrested on arrival, court documents and a Justice Department statement said.

A school sheltering displaced families in central Gaza was among those hit, according to medics and civil defence officials. 

​A school sheltering displaced families in central Gaza was among those hit, according to medics and civil defence officials.