The UN agency for Palestinian refugees on Wednesday said a number of its staff members were killed in an Israeli strike struck a food distribution centre in war-hit Gaza.
A statement issued by the agency said "another 22 were injured when Israeli forces hit a food distribution centre in the eastern part of Rafah" in southern Gaza.
It came as donor nations, aid agencies and charities pushed on with efforts to rush food to the impoverished territory.
A Spanish charity vessel, the Open Arms, was on its way to Gaza from Cyprus, after setting sail a day earlier towing a barge with 200 tonnes of aid, in a first voyage meant to open a maritime corridor.
Israeli forces have also continued carrying out raids across the occupied West Bank, as overnight attacks have left multiple Palestinians dead.
A 13-year-old Palestinian boy from a refugee camp on the outskirts of Jerusalem was also shot dead by Israeli forces on Tuesday, Palestinian health officials said.
The Palestinian Red Crescent said it treated five people wounded by Israeli fire.
Over the past 24 hours, Israeli airstrikes have additionally killed and wounded dozens of civilians, including four children in Gaza City’s Daraj neighbourhood, according to the Palestinian news agency Wafa.