Israel's military on Saturday warned residents in a district of Lebanon's Tyre to evacuate ahead of strikes, and reiterated a demand for people to leave the area south of the Litani River.

The Israeli military's strikes on east Lebanon, where Israeli forces carried out a commando operation, killed 41 people, the Lebanese health ministry said on Saturday.

The United Nations special coordinator for Lebanon on Saturday urged Lebanon and Israel to enter talks to negotiate an end to hostilities after the outbreak of a renewed Israel-Hezbollah war.

Israeli Defense Minister Israel Katz on Saturday warned President Joseph Aoun that Lebanon would pay a "very heavy price" if it fails to disarm Hezbollah.

Israel's military said Saturday it had carried out an operation in east Lebanon to find remains of airman Ron Arad, but failed to uncover any trace of the navigator missing since 1986.

Hezbollah on Saturday said it confronted Israeli troops that infiltrated an east Lebanon town overnight, with Lebanese authorities reporting at least 16 killed in Israeli strikes on the area.

Aid agency the Norwegian Refugee Council (NRC) said Friday that 300,000 people in Lebanon had been forced to flee after Israel launched a wave of evacuation orders and airstrikes.

The aid agency also questioned the legality of the mass-evacuation orders Israel had issued there.

Israel's military said a projectile fired at its territory on Friday wounded eight soldiers near the Lebanese border.

"Earlier today, five IDF soldiers were severely injured as a result of projectile fire toward Israeli territory near the Lebanese border," the military said.

Israel's military said Friday it had identified "simultaneous and coordinated" missile launches by Iran and Hezbollah aimed at overwhelming Israeli air defenses.

"We... identified yesterday simultaneous and coordinated attacks between Iran and Hezbollah, simultaneous missile launching from both Iran and Lebanon in an attempt to overwhelm our aerial defense systems," military spokesman Lieutenant Colonel Nadav Shoshani told journalists.

The Israeli military on Friday said Hezbollah had fired around 70 rockets toward Israel since midnight, many of them from southern Lebanon.

"After midnight yesterday, around 70 rockets were launched towards the direction of Israel," military spokesman Lieutenant Colonel Nadav Shoshani told journalists, adding that "a lot of these launches were from southern Lebanon".