"You will not be able to return the people of the north to the north," Hassan Nasrallah said addressing Israel, warning that "no military escalation, no killings, no assassinations, and no all-out war can return residents to the border".

Nasrallah said that Israel had dealt an "unprecedented" blow to his group, crossing all red lines with device explosions.

"With this operation, the enemy crossed all... red lines," Lebanon's Hezbollah chief said accusing Israel of trying to "kill no fewer than 5,000 people" in "a major and unprecedented... blow" to the group.

The pager and walkie-talkie explosions on Tuesday and Wednesday killed 37 people and wounded nearly 3,000. Hezbollah blamed Israel for the unprecedented attacks, which dealt a huge blow to the powerful movement.

Lebanon's Hezbollah chief said that Israel will receive "just punishment" for its attacks.

Israel will face "tough retribution and just punishment, where it expects it and where it does not," Nasrallah said adding that he would not give further details of the place, timing, or nature of Hezbollah's response.

Nasrallah announced the launch of an internal probe into the explosion of hundreds of communication devices used by group operatives across Lebanon.

Lebanon's Hezbollah chief said his group will not stop fighting with Israel until the Israeli war on Gaza ends.

"The Lebanese front will not stop until the aggression on Gaza stops" despite "all this blood spilt," he said in his first televised speech since the blasts.

Israeli warplanes broke the sound barrier over Beirut as he spoke, Lebanon's state-run National News Agency said, with AFP correspondents in Beirut hearing loud booms.