Staff at a jewellery shop in Eastbourne were held at gunpoint as two men ransacked the shop for money and gems.
The men, who brandished a large knife and black double-barrelled shotgun, burst into Gold Arts in Terminus Road yesterday at 5pm.
The pair, who wore dark clothing, fled to a waiting Volvo SE 850 estate, index number N763 YHP.
Police believe the car was stolen from Brighton on Monday. It was later discovered burnt out in Hartington Place, Eastbourne.
No one was hurt but staff were said to be shaken.
Police are appealing for any information about the vehicle or its owners.
Witnesses should call Sussex Police on 0845 6070999 or Crimestoppers anonymously and free on 0800 555111.
No one from the shop was available for comment this morning.
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