Two men are being sought by police after a man set himself on fire during the alleged robbery of a store in the New South Wales Hunter Valley.

Both men were captured on CCTV entering the business in Thornton wearing dark clothes and balaclavas in the early hours of last Tuesday, February 10.

In the footage, the two men can be seen walking through the carpark before a ball of fire erupts on the footpath.

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A man engulfed in flames emerges from the fire and runs away, trying to pat out the flames, before a light-coloured sedan is seen leaving the area.

Emergency services were called to the business on the New England Highway at 1.05am.

Fire and Rescue NSW firefighters brought the fire under control and extinguished the blaze.

While the building did not sustain major structural damage, large amounts of stock was destroyed in the fire and a cash register was stolen.

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Police have established a crime scene and are appealing for anyone with information about the two men to come forward.

Authorities believe one of the men may have sustained burns.

Anyone with information about this incident is urged to contact Crime Stoppers on 1800 333 000 or https://nsw.crimestoppers.com.au

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