A Palestinian man, stained with the blood of his relative, is comforted as he reacts at Shifa hospital in Gaza City on Wednesday. Reuters/Mohammed Salem

An Israeli missile strike in the Gaza Strip killed six members of a Palestinian family on Thursday, all of them civilians, medical officials and residents said, bringing the death toll in the territory from a 48-hour surge in fighting to 32.

The Israeli military had no immediate comment on the pre-dawn incident in Deir al-Balah, which came as cross-border shelling exchanges continued despite a ceasefire offer by the Palestinian militant group Islamic Jihad.

Israel killed an Islamic Jihad field commander on Tuesday, sparking cross-border rocket salvoes by the militant group and further Israeli strikes. Medics said 32 Palestinians have been killed, at least a third of them civilians.

Those killed in Thursday's attack on a home in Deir al-Balah included a woman and a child, medical officials said. Another 12 people were wounded, they said.

Reuters