Police are conducting enquiries following a report of a man in his 20s impersonating a police officer.
The PSNI said it received a report from a member of the public around 7.30pm on Saturday, December 28 "that a dark-coloured Audi A3, driven by a man, used flashing lights to stop another car in the Crankill Road area" of Ballymena.
Chief Inspector Redmond said: "The member of the public believed this to be a police vehicle and pulled over. However, he became suspicious when the man could not produce any form of official police identification and was not wearing a uniform.
"We understand two other men were also in the back of the car. He subsequently drove off and was followed by the suspicious vehicle for a short time before reporting what happened to police.
"The suspect is described as being aged in his mid-20s, 5ft 9ins in height and of slim build. He was wearing a woolly hat, grey tracksuit bottoms and a jacket.
"Our enquiries are continuing to determine who was involved and a motive. We would also issue a warning that it is an offence to impersonate a police officer, and this type of behaviour will be dealt with by way of investigation and potential prosecution."
Police are appealing "to anyone who witnessed what happened or any member of the public who may have experienced a similar occurrence in the area to contact us on the non-emergency number 101 and quote reference number 8 29/12/24".
They said a report can also be made using the online reporting form via www.psni.police.uk/makeareport or through Crimestoppers anonymously on 0800 555 111.
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