ISLAMABAD: One person was killed while four others were injured in Pakistan’s southern port city of Karachi after a gas cylinder exploded, triggering a fire inside a residential building, police and rescue officials said on Sunday.

The fire was caused on Saturday night by a gas cylinder explosion at a flat in Bismillah Residency located in Karachi’s North Nazimabad area, Sindh Police said in a statement. Local media reports said the flat was located on the ninth floor of the high-rise building.

Rescue 1122 Sindh emergency service said its firefighters arrived shortly after the fire was reported and doused the flames on Sunday morning. It said all of the building’s occupants, except for the one person who was killed by the fire, were rescued.

“The child who died in the fire that broke out following a cylinder blast in a building has been identified as Burhan, son of Aoun, aged 15,” Rescue 1122 spokesperson said in a statement.

It said the injured included two women, one man and a four-year-old girl.