"The Israeli shelling is an unacceptable and unjustified violation of Lebanese sovereignty," Siniora said in a statement. "The rockets launched from Lebanon threaten the country's security and stability and constitute a violation of U.N. Security Council Resolution 1701."

Resolution 1701 ended the devastating 2006 summer war between the Shiite militant group Hezbollah and Israel.

Siniora's statement came after two rockets were launched early Saturday from the south into northern Israel, and the Israeli military responded with artillery.

Israeli public radio said one woman was lightly injured by flying glass in her home when a rocket hit near the Israeli town of Maalot close to the border.

There were no reports of injuries in Lebanon and no claim of responsibility for the rocket attack.

Siniora denounced the attacks on both sides as unacceptable and called on the army and U.N. peacekeepers stationed in southern Lebanon to do their utmost to " prevent Lebanon from sliding into a new cycle of violence." -AFP