Police say a 44-year-old man wheeled a shopping trolley containing three jerry cans of petrol and fireworks through the front door of the TIO (Territory Insurance Office) building  in Cavenagh Street about 11am, injuring 15 people.

The injured people have been treated at the Royal Darwin Hospital. Five people are in the high dependency unit.

It is believed to be a dissatisified insurance claimant that caused the blast which injured 15 and frightened countless innocent people.

Not the sort of crime one would expect in little ole Darwin is it?