Two rockets fired from Lebanon hit northern Israel late on Saturday, the military said, adding that no casualties were reported.
"Two rockets fired from Lebanon hit uninhabited areas in the Nahariya region," a coastal town around 12 kilometres (seven miles) from the border with Lebanon, an army spokeswoman told AFP.
Israel responded with artillery fire targeting the firing points.
Signup to our newsletter and follow us on Facebook and Twitter!
A Lebanese security source told AFP at least one rocket was fired at around 10:20 pm (1920 GMT) from an area south of the port of Tyre, about a dozen kilometres from the border.
Lebanon's official news agency said three rockets were fired.
Saturday's attack followed the launch of a Katyusha rocket from southern Lebanon into Israel early Friday, also without causing casualties or damage.
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.
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.