UPDATE: 4.33pm

Around 10 tonnes of faulty biscuits were destroyed by fire at the inside a steel container.

UPDATE: 3.20pm

A FIRE has broken out inside a sealed compactor unit on the grounds of a Cwmbran biscuit factory.

Fire fighters from Cwmbran and Malpas are in attendance at Burton Foods in Cwmbran, said head of control Jennie Griffiths, after the call came in at 2.40pm.

She tweeted that the crews are trying enter a sealed compactor unit, which contains biscuit-making products, using two hose reels and thermal imaging camera.

A spokeswoman for South Wales Fire and Rescue Service confirmed that the fire is not inside the factory itself but is on factory grounds.

The Argus has contacted the company for a comment.