In the second wave of device explosions in as many days, 20 people died and more than 450 were wounded on Wednesday in Hezbollah strongholds in Lebanon.

A Japanese firm whose name was on devices that exploded says it discontinued them a decade ago.

Sept. 19 (UPI) -- Japan's Icom Inc. said Thursday that it had not manufactured the walkie-talkies that exploded in attacks targeting Hezbollah throughout Lebanon on Wednesday.

Hezbollah said walkie-talkies used by its members blew up in its Beirut stronghold

The blasts came a day after the simultaneous explosion of hundreds of paging devices used by Hezbollah.

The device in question, which requires batteries that were discontinued nearly a decade ago, has also been out of production since 2014, according to Icom. Additionally, the batteries used for the devices have also been discontinued.

The stunning attacks against walkie-talkies and pagers have killed at least 32 people, left Hezbollah in disarray and taken the Middle East to the brink of all-out war.

The recent walkie-talkie blasts in Lebanon mark a new era of warfare, where advanced technology, including remote-triggered explosives, highlights the growing threats posed by compromised supply chains.

The walkie-talkie explosions in Lebanon on Wednesday killed 20 people and wounded over 450 others a day after thousands of pagers detonated on Tuesday. Images of the exploded walkie-talkies showed labels bearing the name of Japanese radio communications company ICOM.