Late this afternoon an explosion was heard from the vicinity of the Tal-Karmnu fireworks factory in Żurrieq.
A Police Spokesperson told TVM they were informed this was at about 4.45pm.
Initial reports state the factory may have been struck by a bolt of lightning and the explosion may have come from the gunpowder machine.
Shortly after local fireworks enthusiasts informed the Police there was nobody present at the factory at the time.
The AFM Explosives Unit was called in check security and Civil Protection employees were also on the site.
Lightning also cut electricity supply in various residences for a short while.