A building is on fire in an industrial area of the Upper Hutt suburb of Trentham.

Fire and Emergency were called to the scene on Dante Road, just after 4pm Saturday.

One person has sustained serious injuries.

Crews from Trentham, Remutaka, Silverstream, Avalon, Wellington City and Thorndon are attending.

A fire in the Upper Hutt suburb of Trentham.

One person has sustained serious injuries in a fire in Upper Hutt.
Photo: Daniel Talbot

The fire was well alight on arrival and was escalated to second alarm.

Police were then called to assist at the address near the intersection of Alexander Road.

Five firetrucks and three support vehicles are working to extinguish the fire, which is measuring 30-by-20 metres, and is also burning a pile of tyres.

Motorists are advised to avoid the area, while emergency services continue to work at the scene.

Police will investigate to determine the circumstances surrounding the fire.

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