EXPLOSION AT HEZBOLLAH ARMS DEPOT: SOURCE

BEIRUT An arms depot of the Iran-backed Shi'ite Muslim group Hezbollah exploded in southern Lebanon on Tuesday, a security source said, injuring several people and sending a new shockwave across a nation grappling with its deepest crisis in three decades.

The security source said the arms depot blast, which sent a huge column of black smoke into the sky, was caused by a “technical error.”

The explosion rocked the village of Ain Qana in south Lebanon, a region that is a political stronghold of the heavily armed and politically powerful group.

The blast has further rattled a nation still reeling from the blast at Beirut's port that ripped through the capital, killing at least 190 people.