An airstrike hit the civil emergency centre in the Nuseirat market area in the central Gaza Strip, killing Ahmed Al-Louh, a video journalist for Al Jazeera TV, and five other people, including medics.
Another strike on a house in Nuseirat camp killed five people, including children, according to medics.
In southern Gaza's Khan Younis, medics said that at least 20 people, including women and children, were killed when an airstrike hit a shelter housing displaced families.