Israeli military strikes killed at least 15 Palestinians in Gaza on Sunday, medics said, as Israeli forces kept up bombardments across the enclave and blew up houses on its northern edge.
In the central Gaza camp of Nuseirat, an Israeli airstrike killed six people in a house, and another attack killed three in a home in Gaza City, medics said.
Two children were killed when a missile hit a tent encampment in Khan Younis in the southern Gaza Strip, while four other people were killed in an airstrike in Rafah, near the border with Egypt, medics told Reuters.
Residents said the military blew up clusters of houses in the northern Gaza areas of Jabalia, Beit Lahiya and Beit Hanoun, where Israeli forces have operated since October this year.
Palestinians say Israel's operations on the northern edge of the enclave are part of a plan to clear people out through forced evacuations and bombardments to create a buffer zone - an allegation the army denies.
The military says it has killed hundreds of Hamas militants there as it fights to stop the faction regrouping almost 14 months since the war in Gaza started. Hamas's armed wing says it has killed many Israeli forces in anti-tank rocket and mortar fire attacks, and in ambushes with explosive devices since the new operation started.
Israel's offensive has killed over 44,000 Palestinians, more than half of them women and children, according to Gaza's Health Ministry. Israel says it has killed over 17,000 militants, without providing evidence.