LISBON: An explosion at a fireworks factory in northern Portugal left at least six people dead, with two others missing, a top interior ministry official said Wednesday, revising higher an earlier toll.

Authorities were still probing the cause of the blaze and working to identify the bodies, said Jorge Gomes, a deputy minister in the interior ministry. More than 100 firefighters were dispatched to battle the fire sparked by the explosion late Tuesday at the factory in the town of Lamego.—AFP