Palestinian witnesses and officials say Israeli warplanes carried out at least six raids on the Hamas-ruled Gaza Strip early Friday
They say at least three air strikes targeted an area near the central town of Khan Younis, the site of last week's deadly clash between Israeli troops and Palestinian gunmen.
Another strike destroyed a workshop in the refugee camp of Nusseirat and the last one completely destroyed a dairy factory. Hospital sources said at least two children were injured by flying debris.
The Israeli military says the raids were a response to a rocket attack from Gaza on Israel.
Thousands of Israelis gathered in the West Bank city of Hebron Thursday to celebrate Israel's inclusion of the Cave of Patriarchs and Rachel's Tomb near Bethlehem as a national heritage sites.
The move angered Palestinians and sparked clashes between Palestinians and Israeli security forces. Palestinians claim the occupied West Bank and East Jerusalem as part of a future state and reject Israel's settlement activity and military occupation of the area.
The Cave of Patriarchs is believed to be the burial site of Abraham - a sacred figure to both Muslims and Jews.
Some information for this report was provided by AP, AFP and Reuters.