The United Nations human rights office said on Friday that an Israeli offensive in Gaza's border town of Rafah could not be allowed to happen because it would cause massive loss of Palestinian lives.
"Should Israel launch its threatened military offensive into Rafah, where 1.5 million people have been displaced in deplorable, subhuman conditions, any ground assault on Rafah would incur massive loss of life and would heighten the risk of further atrocity crimes," said Jeremy Laurence, spokesperson for the UN Human Rights Office.
"This must not be allowed to happen."
Defying international calls to halt its military operation, Prime Minister Benjamin Netanyahu said on Thursday that Israel would push on with its offensive against the Hamas movement that runs Gaza, including into Rafah, which he described as "the last Hamas stronghold".
Israel has also said it is reviewing possible curbs on access to Al Aqsa mosque in Jerusalem over Ramadan as Hamas called for Palestinians to march to the mosque at the start of the holy month of Ramadan.
"We also fear that further Israeli restrictions on access by Palestinians to East Jerusalem and the Al Aqsa mosque during Ramadan could further inflame tensions," Laurence said.
Prince Harry said on Friday that he wanted reconciliation with the British royal family but his father King Charles will not speak to him over a row over his security and he did not know how long the monarch, who has cancer, would live.
A magnitude 7.4 earthquake struck Drake Passage between Cape Horn and Antarctica at a depth of 10 km (6 miles) on Friday, the United States Geological Survey said.
A ship with humanitarian aid and activists for Gaza was bombed by drones while in international waters off Malta early on Friday, its organisers said, and the Maltese government said after a rescue operation that everyone on board was safe.
A power outage hit several regions of Indonesia's resort island of Bali on Friday and efforts were underway to restore services to those affected, state utility Perusahaan Listrik Negara said.
A Russian drone attack late on Thursday set buildings ablaze in Ukraine's southeastern city of Zaporizhzhia, injuring 29 people, regional governor Ivan Fedorov said.