More than 100 rockets and missiles were fired from Lebanon into northern Israel Friday afternoon, the Israel Defense Forces (IDF) reported, with about 80 launches occurring within a four-minute span.
Israeli defense systems intercepted some of the projectiles, which targeted several regions across northern Israel, the military said.
In response, the IDF said its jets struck several Hezbollah rocket launchers believed to have been used in recent attacks.
Hezbollah has not commented on the incidents.
The attacks came as Israel prepared to observe Yom Kippur, the holiest day in the Jewish calendar. Despite the shutdown of most services for the holiday, the country remains on high alert amid the fighting in Gaza and the renewed tensions with Lebanon.
In a separate incident, two United Nations peacekeepers were injured in explosions near a watchtower in the Lebanese border town of Nakura Friday morning, according to the United Nations Interim Force in Lebanon (UNIFIL).
An Israeli military spokesman said the army was conducting a "thorough investigation at the highest level of command" into the incident.
"Hezbollah terrorists and infrastructure are adjacent to UNIFIL positions, posing a significant risk to the security of UN peacekeepers," the Israeli military said in a statement.
UNIFIL reported that several walls at its position near the Blue Line in Labbouneh collapsed when an Israeli vehicle struck the perimeter, with Israeli tanks moving close to the UN position.
"These incidents place the UN peacekeepers in extremely grave danger," said UNIFIL in a post on social media platform X.