Police were called to the scene around 2.30am B.S.T., after the fire broke out around 2am, and the Independent reports Monday "Witnesses described scenes that were “like Armageddon” as loud booms and fireballs were sent up into the sky. A number of buildings in the [immediate] area have been evacuated."
A nightclub in the area, the Canal Mills, was evacuated leaving night-time revellers to post images on Twitter and declare "Leeds is on Fire."
Monday the Daily Mirror's headline reads "Thick black smoke blankets city after huge fire breaks out at chemical storage building."
Almost seven hours after police were called the fire service reportedly have the blaze "surrounded" but the threat of chemical air pollution remains.
If you were planning a day trip to Leeds city centre today, Easter Monday, the advice has to be 'don't bother.'
Leeds is a often busy shopping city with visitors travelling in from other parts of Yorkshire, and further afield. It also offers visitors some fine old buildings and museums. Those old buildings were cleaned up in recent years. The black smoke of Leeds' industrial past was sand-blasted away. Just how clean they will look today is any person's guess.
At time of writing there are no injuries reported. Up to 80 firefighters worked on containing the fire.
The fire broke out in a building containing chemicals and spread to a packaging company. A lethal combination.
Updates as available.