The airstrike was carried out in early hours of Friday near Na'ameh, between Beirut and Sidon.
This comes a day after rockets were fired into the occupied lands from Lebanon.
A total of four rockets were fired from southern Lebanon.
No casualties were reported in that attack, although news footage showed some minor damage at a kibbutz near the coastal town of Nahariya.
Rockets have been fired into Israel intermittently by militant groups since the Israeli war on Lebanon in 2006.
Lebanese news agencies reported all four rockets were fired at Israel from the Tyre region in southern Lebanon.
BA/BA