In pictures: Primark building in Belfast gutted in firePacemakerA police officer at the scene has told the BBC that the building is at "risk of imminent collapse".PacemakerUp to 100 firefighters have been at the scene and the fire service has said the blaze has spread to all floors.Flames billow from the Primark store in the Bank Buildings on Castle Street, in Belfast city centre.The fire on the building's roof was reported at about 11:00 BST. Pieces of debris have been falling from the side of the building.PacemakerThe original Bank Buildings was designed by Sir Robert Taylor and erected by Waddell Cunningham in 1785. The new Bank Buildings was designed by WH Lynn in 1900Primark said the store was safely evacuated and there have been no reports of any injuries.PacemakerThe building's iconic clock was engulfed in flames.PacemakerEmergency services have been tackling the fire in Belfast city centre since late morning.PacemakerCrowds watched on in astonishment as the blaze spread throughout the building in Belfast city centre.PacemakerThe building was evacuated and Royal Avenue cordoned off as the fire spread.Primark store 'at risk of collapse'History of flagship Bank Buildings