Lebanon has been hit by another explosion after an arms depot of the Iran-backed Shi’ite Muslim group Hezbollah allegedly exploded in the southern village of Ein Qana on Tuesday, September 22.

The village of Ain Qana in south Lebanon is a political stronghold of the heavily armed and politically powerful group which has fought wars with neighboring Israel.

A 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 insider added that many people were injured.

Pictures from Lebanese news media showed clouds of dark smoke coming out from the area.

The al-Manar television station run by Lebanon’s Hezbollah confirmed there was an explosion but declined to give further details.

Residents said ambulances had carried away several injured people, while Lebanon’s National News Agency reported limited material damage.

The mysterious explosion comes seven weeks after a huge explosion rocked Beirut port after an estimated 2,750 tonnes of ammonium nitrate caught fire at a warehouse. The explosion killed nearly 200 people, injured 6,500, and damaged tens of thousands of buildings in the capital, Beirut.

Two week ago, a massive fire also broke out at a warehouse in Beirut port.