The projectile was reportedly fired by the Iran-backed Hezbollah movement.
It hit a parking lot in a residential area, according to the emergency services, The Times of Israel reports.
On Thursday night, an Israeli soldier was also killed in a firefight with Hezbollah members in southern Lebanon, according to the Israeli military.
Israel escalated its military operations against Hezbollah in Lebanon in early March. The Shiite militia has responded with repeated shelling of Israel.
