At least five employees from the World Central Kitchen non-governmental organization, including foreigners, were killed in an Israeli airstrike on Gaza, the local government media office said late on Monday.

Those killed in the incident in central Gaza's Deir al-Balah included citizens of Poland, Australia and Britain, as well as one Palestinian, a spokesperson for the media office said.

The organization said in a statement that they were "aware of reports" that their members had been killed in an Israeli attack while working to support humanitarian food delivery efforts in Gaza.

(With input from agencies)