The Israeli Defense Forces, IDF, on Monday said an Israeli drone was shot down over Lebanon on Sunday night.
Writing on Telegram, the IDF said a surface-to-air missile was launched at the drone that was operating in Lebanese airspace, adding that the drone was hit and had landed in Lebanon.
It added that fighter jets struck the missile launch site.
Fighting broke out with Lebanon on Sunday, with the Israeli army announcing that two shells had been fired in the direction of the village of Rosh Hanikra in northern Israel on the Mediterranean Sea.
The Israeli Army attacked the locations from which the shots were fired and fighter jets had also attacked terror infrastructure north-east of Nabatieh, it said.
Previously, fighter jets had also fired on targets belonging to the Iran-backed Lebanese Shiite militia Hezbollah.
Both Hezbollah and the military arm of Palestinian militant organisation Hamas claimed responsibility for attacks on Israel on Sunday.
Since the beginning of the Gaza war in October, deaths and injuries have resulted from daily firing on the border between Lebanon and Israel.