A day later, a similar attack struck walkie-talkies. In total, the explosions killed at least 37 people and injured more than 3,000, many of them civilians. Israel is widely believed to be behind the blasts, although it has neither confirmed nor denied responsibility.

Israel's military said on Thursday it had struck hundreds of Hezbollah rocket launchers that had been targeted at Israel.

By Laila Bassam and Maya Gebeily BEIRUT (Reuters) -Hand-held radios used by Lebanese armed group Hezbollah detonated on Wednesday across Lebanon's south and in Beirut suburbs, further stoking tensions with Israel a day after similar explosions launched via the group's pagers.

Eyewitness video released on Wednesday 18 September showed the moment an explosion went off in a building in Lebanon’s Qennarit, roughly 30 miles southwest of the capital Beirut, as hand-held radios used by the armed group Hezbollah detonated across the country’s south.

Explosions were reported in southern Lebanon, including the city of Sidon, as well as Beirut's southern suburbs and the Bekaa Valley At least 20 people have been killed and more than 450 wounded by a second wave of explosions from wireless communication devices in Lebanon,

Additional explosions linked to electronic devices caused more deaths and injuries a day after pagers used by Hezbollah exploded, wounding thousands.

Israel Defense Forces on Thursday said it carried out airstrikes on Hezbollah sites in Lebanon, just days after a deadly wave of explosions around Beirut.