Two civilians were seriously injured, and one other was lightly injured after an explosive drone struck Rosh Hanikra on Thursday.
The drone reportedly hit a parking lot in the area, causing an explosion.
The wounded were evacuated to Galilee Medical Center in Nahariya for treatment.
The IDF confirmed that the drone had been launched by Hezbollah, saying the incident constitutes "a blatant violation" of the ceasefire understandings between Israel and the Iran-backed group.
Yisrael Beytenu leader MK Avigdor Liberman criticized the government’s handling of the northern front following the strike.
"The lawlessness in the North continues, creating a reality in which explosive drones are attacking not only IDF soldiers in Lebanon, but also civilians inside the State of Israel," he said, adding, "This lawlessness must be stopped immediately."
Attack follows IDF strikes on Hezbollah infrastructure
The incident comes shortly after the IDF said it had begun striking Hezbollah terror infrastructure sites in several areas in southern Lebanon.
Earlier on Thursday, IDF Arabic-language spokesperson Avichay Adraee issued an urgent evacuation warning to residents of several Lebanese towns, including Labaya, Sahmar, Taffahata, Kafr Malek, Yahmor in the Bekaa, Ain Tineh, Houmin al-Fouqa, and Mazra’at Sinai.
IDF to establish FPV drone factory to counter Hezbollah threat
On Sunday, Hezbollah released footage of one of its First-Person View (FPV) drones striking an Iron Dome battery on the northern border.
The IDF has struggled to respond to the FPV drone threat, which uses special cables and manual operation of the drone to outwit the IDF’s advanced technologies for jamming and tracking drones.
In an effort to counter the rising Hezbollah threat, the IDF is set to establish a factory that will produce first-person view (FPV) "suicide" drones and employ approximately 200 haredi (ultra-Orthodox) soldiers, according to a Tuesday report.
Meanwhile, as a third round of Israel-Lebanon talks is set to open in Washington on Thursday, a senior Lebanese official said Beirut would demand that Israel halt its fire. The talks come as Israel and Hezbollah continue to trade blows despite a US-backed truce announced last month, which is set to expire on Sunday.
Yonah Jeremy Bob, James Genn, and Reuters contributed to this report.