A structure fire at a Hobart bakery caused about $500,000 damage on Tuesday. 

Four Tasmania Fire Service crews were met with thick smoke and flames when they arrived at the scene at Rosny’s Banjo's Bakery just before 10am.

A person was inside the building at the time of the blaze, but was transported to the Royal Hobart Hospital and treated for minor injuries. 

Firefighters were quickly able to bring the fire under control and the cause is now being investigated. 

EARLIER 

Fire crews are responding to reports of a structure fire at Banjos in Rosny Park. 

Bligh and Bayfeild Streets, including the bus mall, are currently closed. 

The fire was reported about 9.50am.

More than four fire trucks are attending the scene. 

Tasmania Police is managing the road blocks. 

Traffic is being diverted around Winkleigh Place.