Israeli attacks across Gaza have killed at least 21 people since dawn, according to Al Jazeera.
Those killed include six in attacks on tents housing displaced people in Khan Younis and four in an attack on a tent in Deir el-Balah.
The Palestinian state news agency Wafa reported that 10 people — including two children — were killed in or near Deir el-Balah.
It also said two people had been killed while waiting for aid near Beit Lahiya in northern Gaza, with 53 injured there.