Three people were wounded at two separate sites the Upper Galilee by Hezbollah missile shrapnel, hours after US President Donald Trump announced a ceasefire between Israel and Lebanon.
At one site, a 25-year-old man was severely wounded, having been riding a motorcycle at the time of the siren, and a 40-year-old man was moderately wounded.
At the second scene, a 17-year-old girl was severely wounded with a shrapnel injury to the leg.
Ten others treated for anxiety
All three of the wounded have been evacuated to the Galilee Medical Center in Nahariya for further medical treatment.
Magen David Adom personnel treated 10 other people at the scene who were suffering from anxiety.
Israel Police has also asked visitors to Mount Meron to leave the site immediately out of fear of potential rocket fire targeting the area, Israeli media reported on Thursday night.