Police are looking for two men after a shoplifting incident at Exeter's Morrison's supermarket in Prince Charles Road.
The pair went into the shop dressed in identical clothes and walked off in different directions - one of them filled a green carrier bag with items and left without paying.
He was challenged by a member of staff outside and threatened them with a knife.
A man has been arrested but released without charge and police are appealing for witnesses to the theft.
Rocket builder careers in Cornwall to soar
'Twas the weather warning before Christmas
Police watchdog investigates after fatal Plymouth crash
Torbay memorial bench prices top London's
There’s No Place Like an Exeter Panto
Festive fanatic launches 'one song' Christmas station
