Smoke billows following an Israeli air strike in Rafah in the southern of Gaza Strip, on August 19, 2014.
Israeli air strikes killed five Palestinians in the centre of the Gaza Strip on Friday, two in Deir al-Balah and three in Nusseirat, the local emergency services said.
One strike in Nusseirat hit a house, killing two men aged 24 and 22, while in Deir al-Balah it landed in open farmland, Ashraf al-Qudra told AFP.
A drone strike later targeted a 45-year-old man in Nusseirat who died of his injuries in hospital shortly afterwards, Qudra's office said.
The identities of those killed in Deir al-Balah were not immediately clear.
Hostilities in the six-week war between Israel and Hamas resumed on Tuesday as Egyptian-brokered truce talks collapsed.
The Palestinian emergency services say 76 people have died in Gaza since then. Four people in Israel have sustained shrapnel injuries as a result of Palestinian rocket attacks on Israel on Friday.
At least 2,092 Palestinians have been killed since July 8, of whom the United Nations has identified 70 percent as civilians, and 67 people have died on the Israeli side, all but three of them soldiers.
UNICEF said Friday that at least 15 Palestinian children had been killed in Gaza in the last 48 hours, bringing to at least 478 the number of Palestinian children reported killed since the war began.