Israeli military strikes across Gaza killed at least 27 people on Wednesday, Palestinian medics said, as international mediators stepped up efforts to seal a ceasefire and hostage exchange deal between Israel and the Palestinian group Hamas.

Palestinian medics say Israeli airstrikes have killed at least five people in the Gaza Strip, including two infants and a woman.

At least 19 Palestinians, including eight children, were killed in Israeli air strikes in southern Gaza overnight, local health officials say. A mother and her four children were reportedly killed when a tent camp for displaced people in al-Mawasi was hit, while another a couple and their children died in the nearby city of Khan Younis.

Israeli military strikes across Gaza killed at least 22 people on Wednesday, Palestinian medics said, as the U.S. stepped up efforts to overcome sticking points between Israel and Hamas to reach a ceasefire to end the war.

Five children were killed as they sheltered together in the same tent in Muwasi, according to the director of the children's ward at Nasser Hospital in nearby Khan Younis.

The Israeli military said it targeted militants who had taken part in the Oct. 7, 2023, attack that sparked the war, without providing evidence.