Mahmud Bassal, a spokesman for the agency, which operates as a rescue service under Hamas authority, said six of the victims were killed when an Israeli strike targeted a "group of civilians" in Zuwaida town in central Gaza.

Six other people, including children, were killed and 13 others injured in two separate strikes near Nuseirat in central Gaza, Bassal said.

The fatalities were confirmed by Al-Aqsa Martyrs hospital and Al-Awda hospital.

A woman and two children were killed when a drone strike hit a tent housing displaced people near Asdaa City, north of Khan Yunis.

Two people, including a journalist, were killed and several others injured in an Israeli strike in the western part of Zuwaida town in central Gaza.

In another attack, two people were killed and several injured when an Israeli strike hit a tent in the Al-Ahli Club area in Nuseirat, central Gaza, Bassal said.

Two more people were killed in an Israeli air strike in eastern Jabalia, northern Gaza Strip, he added.

The Israeli military told AFP it was checking reports of casualties.

Later on Sunday, the Israeli military said it had launched fresh strikes on Hamas targets in southern Gaza.