Hezbollah has vowed to respond to an Israeli attack that killed multiple people and injured thousands across Lebanon on Tuesday when pagers belonging to members of the Iran-backed militant group exploded almost simultaneously,

Israel's Mossad spy agency planted explosives inside 5,000 pagers imported by Lebanese group Hezbollah months before Tuesday's detonations, a senior Lebanese security source and another source told Reuters.

Nine people, including a child, have been killed after handheld pagers used by members of the armed group Hezbollah to communicate exploded across Lebanon, the country’s health minister says. Iran’s ambassador to Lebanon was among 2,800 other people who were wounded by the simultaneous blasts in Beirut and several other regions.