Israel’s infrastructure and electricity stations “need only a few rockets” to leave the country paralyzed, Hezbollah leader Hassan Nasrallah said Saturday in a televised speech.

Speaking to hundreds of supporters via video link, Nasrallah warned Israel not to attack Lebanon, saying Hezbollah’s response will be harsh.

“The Islamic resistance won’t keep mum on any Israeli attack on Lebanon,” he warned, adding that Hezbollah would not need to transfer any weapons from Syria to retaliate.

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“The resistance in Lebanon possesses all the necessary equipment,” he said.

The screening of Nasrallah’s speech was preceded by an address given by the son of Imad Mughniyeh, a Hezbollah terror chief whose February 2008 death was attributed to Israel.

Also during his speech, Nasrallah denied allegations that Hezbollah was responsible for the July 2012 bombing of a tour bus in Bulgaria that killed five Israeli tourists and their local driver.

The leader of Hezbollah refused to comment on a Bulgarian report that said members of the Lebanese terrorist group carried out the attack, saying the “issue is being followed calmly and carefully.”

The July 18 bombing killed the five Israelis as well as a Bulgarian bus driver and the suspected bomber at the airport in the Black Sea resort of Burgas.

Three men are suspected in the attack, including the bomber.

The latter’s identity has not been established. The names of the two other suspects, believed to still be alive, have not been made public.