Israel has bombed areas of southern Gaza after telling Palestinians to flee ahead of an expected invasion, killing dozens of people.
In Gaza, people wounded in the air strikes were rushed to hospital after heavy attacks outside the southern cities of Rafah and Khan Younis, residents reported.
Basem Naim, a senior Hamas official and former health minister, reported 27 people were killed in Rafah and 30 in Khan Younis.
An Associated Press reporter saw around 50 bodies brought to Nasser Hospital in Khan Younis. Family members came to claim the bodies, wrapped in white bedsheets, some soaked in blood.
An air strike in Deir al Balah reduced a house to rubble, killing nine members of the family living there. Three members of another family that had evacuated from Gaza City were killed in a neighbouring home. The dead included one man and 11 women and children. Witnesses said there was no warning before the strike.
The Israeli military said it was targeting Hamas hideouts, infrastructure, and command centres.
