This comes a day after pagers exploded across Lebanon, killing nine people and injuring more than 2,800 others.

Tuesday's explosion happened across southern Lebanon as well as Beirut's suburbs. At least one of the blasts happened near a funeral organised by Hezbollah for a member who was killed in the pager blasts on Monday.

The total number of walkie-talkies that blew up is not known yet, but the explosion may have left casualties.

According to reports, the hand-held wireless radio devices and walkie-talkies were purchased around five months ago, approximately the same time as the pagers.

Just like the pagers' explosion, all the walkie-talkie devices blew up at the same time, Hezbollah has claimed.

Israel's spy agency Mossad, which has a long history of sophisticated operations on foreign soil, planted explosives inside pagers that were imported by Hezbollah months before Tuesday's detonations, Reuters reported quoting a senior Lebanese security source and another source.

Iran-backed Hezbollah earlier in the day claimed to have attacked Israeli artillery positions with rockets as a response to pager blasts that injured thousands of its members in Lebanon and triggered fear of a wider Middle East war.

Lebanese Health Minister Firass Abiad has confirmed that the blasts left nine people dead and around 2,800 wounded.

Iran's state media had reported that its Ambassador to Lebanon, Mojtaba Amani, was also injured in the pager explosion.

Hezbollah, which is banned both by the United States and the European Union, is a political and military establishment in Lebanon. The group is backed by Iran.

Hezbollah, meanwhile, backs Hamas, which has been at war with Israel in Gaza since October 2023.