Israel on Sunday fired mortar shells at uninhabited areas of Lebanon's south in retaliation to a cross-border attack carried out from Lebanon which hit northern Israel.
Hours before the attack, "Two Katyusha rockets were fired from a Lebanese village five kilometres (three miles) from the border with Israel," a Lebanese security source told AFP.
The Israeli military responded to the attack with artillery fire.
"The Israel Defence Forces have responded with targeted artillery fire following the rockets that hit Israel earlier today from southern Lebanon," an army statement said.
There were no casualties reported in the attacks from both sides.
Lebanon's rocket fire came after wanted Lebanese Hezbollah militant Samir Qantar was killed in a suspected Israeli air strike that hit a building in the Damascus district of Jaramana.
Iranian-backed Shiite militia Hezbollah said Qantar, born in 1962, was killed by an Israeli air raid on a residential district but gave no further details. It is still unclear what role Qantar played in the Syrian conflict.
Hezbollah's official media reported that Qantar would be buried on Monday in its main stronghold of Dahiya in the southern suburbs of Beirut.