Gaza's civil defense agency said Friday that overnight Israeli strikes killed at least 15 people, after nearly 21 months of war in the Palestinian territory.
Israel has recently expanded its military operations in the Gaza Strip, where the war has created dire humanitarian conditions for the territory's population of more than two million.
Gaza civil defense official Mohammad al-Mughayyir told AFP that seven people, including a child, were killed in an Israeli air strike on displaced people's tents near the southern Gaza city of Khan Yunis.
Mughayyir said eight more people were killed in two other strikes on tent encampments on the coast of Khan Yunis, including one that killed two children early Friday.
Contacted by AFP, the Israeli military said it could not comment on specific attacks without precise coordinates, but noted it was "operating to dismantle Hamas military capabilities".
On Thursday, the agency reported that 73 people were killed in Israeli strikes.
Media restrictions in Gaza and difficulties in accessing many areas mean AFP is unable to independently verify the tolls and details provided by the civil defense.
Israel's military campaign has killed at least 57,130 people in Gaza, also mostly civilians, according to the Hamas-run territory's health ministry.