WATCH: Blaze at car service centre in Norwich

Firefighters have been tackling a blaze at the STR Service Centre on Garden Street in Norwich. Photo: Victoria Pertusa (Image: Archant)

Crews were called to the Garden Street centre just before 8.45pm on Monday night.

Firefighters have been tackling a blaze at the STR Service Centre on Garden Street in Norwich. Photo: Victoria Pertusa (Image: Archant)

It is understood the fire has broken out at STR Service Centre Ltd.

Firefighters have been tackling a blaze at the STR Service Centre on Garden Street in Norwich. Photo: Victoria Pertusa (Image: Archant)

Donna Lovett, from Taverham, alerted the fire service after smelling smoke from the walk-in medical centre on Rouen Road.

Firefighters have been tackling a blaze at the STR Service Centre on Garden Street in Norwich. Photo: Victoria Pertusa (Image: Archant)

Ms Lovett said: "After I smelt smoke from the walk-in centre, I went to my car parked outside the STR Service Centre Ltd and saw black smoke billowing out from the garage door. The smell was so strong and it looked quite serious so I called 999."

Firefighters at the STR Service Centre in Norwich. Photo: Victoria Pertusa (Image: Archant)

Three fire crews Carrow, Sprowston and Earlham were initially called, with one stood down at about 9.10pm.

Station manager Gordon Oliver said the crews believed the majority of the fire was now extinguished.

Garden Street and Thorn Lane are both blocked while crews deal with the incident. Rouen Road is unaffected.