The European Union's foreign policy chief Josep Borrell condemned on Monday an Israeli airstrike in the Gaza city of Rafah, which officials have said killed 45 people in a tent camp.

"Horrified by news coming out of Rafah on Israeli strikes killing dozens of displaced persons, including small children. I condemn this in the strongest terms," wrote Borrell on his X social media account.

"There is no safe place in Gaza. These attacks must stop immediately. ICJ (International Court of Justice) orders & IHL (international humanitarian law) must be respected by all parties," he added.