Rockets were fired at Israel from southern Lebanon on Monday, drawing retaliatory artillery fire from Israeli forces, Lebanese security officials and the Israeli army said, in the third such rocket attack from Lebanon since Friday.

An Israeli police spokeswoman said there was no immediate word of damage or casualties from the rocket fire.

There was no immediate claim of responsibility.

The attacks from Lebanon have coincided with an Israeli offensive on the Hamas-run Gaza Strip which Palestinian officials say has killed at least 160 people.

Israel had filed a complaint to the United Nations Interim Force in Lebanon, which monitors the border between Lebanon and Israel, after Friday’s attack, according to Agence France-Presse.

Military officials said they believed the attack was carried out by a small Palestinian group in an act of solidarity with militants from Gaza’s Islamist Hamas movement engaged in a deadly confrontation with the Israeli army which began on Tuesday.

Southern Lebanon is a stronghold of Hezbollah, a Shi’ite Muslim group that battled Israel seven years ago and is engaged in Syria’s civil war in support of President Bashar al-Assad; but there are also Palestinian groups in the same area.