Deir Al-Balah, 18 May

Israeli strikes across the Gaza Strip killed at least 66 people overnight and into Sunday, hospitals and medics in the battered enclave said as Israel launches an escalation of its war in the territory, which it says is meant to ramp up pressure on Hamas to agree to a temporary ceasefire.

The Israeli military had no immediate comment.

The Nasser hospital in the southern Gaza city of Khan Younis said it received the bodies of 20 people who were killed in multiple overnight airstrikes that hit houses and tents sheltering displaced families in the Muwasi area.

In northern Gaza, at least 36 people were killed in multiple strikes, according to first responders from the health ministry and the civil defense.

The dead included nine people from a single family who were killed when an airstrike hit their house in the built-up Jabaliya refugee camp, according to the health ministry's emergency services.

Another strike hit the house of the Berawi family, also in Jabaliya, killing 10 people including seven children and a woman, according to the civil defense, which operates under the Hamas-run government. Among the dead were two parents and their three children and a father and his four children, it said.

In central Gaza, at least 10 people were killed in two separate strikes, according to the Al-Aqsa Martyrs hospital in the town of Deir al-Balah. One strike in the Zweida town killed seven people, including two children and four women. The second hit an apartment in Deir al-Balah, killing two parents and their child, the hospital said.