Attacks targeting communications devices used by Hezbollah members in Lebanon appear to be the latest in a series of covert operations allegedly carried out by Israeli operatives.

Japan's Icom said it was highly unlikely that wireless devices that exploded in Lebanon were the company's products. Pictures of the walkie-talkies used by Lebanese armed group Hezbollah that exploded on Wednesday showed labels reading "ICOM" and "made in Japan".

Hundreds of wireless devices exploded at the same time across Lebanon on Tuesday, causing many to be injured and leading the Lebanese Health Ministry to advise people to stay away from their pager-like devices, multiple outlets reported.

For millions of Lebanese, this week's mass explosion of pagers and walkie-talkies, with its bloody aftermath, is painfully similar to the horrific explosion four years ago of haphazardly stored ammonium nitrates that tore through Beirut's port,

Heightened Anxiety in Lebanon After Wireless Device Explosions transcript We started receiving text messages about pagers exploding. Again, we were scared. We had pagers in the hospital. So just like that,

The deadly Hezbollah-pager explosions are causing mounting distrust, with some Lebanon residents abandoning their electronic devices.

The batteries of the walkie-talkies used by Lebanese armed group Hezbollah that blew up this week were laced with a highly explosive compound known as PETN, a Lebanese source familiar with the device's components told Reuters.