Fire that ripped through offices of the Ghana Revenue Authority (GRA) Head  Office Annex on Sunday has been contained.

Four persons got injured during the raging fire that took more than five hours to extinguish.

The injured persons are all personnel of the Ghana National Fire Service.

An official of the Ghana Red Cross said three of the injuries are minor but one person is severely injured and has been transferred to the hospital.

The fire started at the top floor offices the GRA Head Office Annex on the Ring Road but spread fast to other adjoining offices.

Eyewitnesses said thick black smoke began to fill the clear Sunday sky around 9:00 am before the flames became visible.

Firefighters battled the inferno but with little success. The cause of the fire is not yet known.