Norfolk Constabulary has issued advice to motorists after a woman was approached by a man driving a car with blue flashing lights on a quiet country lane in south Norfolk.

The female driver was driving along Kenninghall Road on Friday evening when the car pulled up behind her.

The male driver of the car then approached her passenger door and gestured to her to put her window down. He then asked her to get out of the car but the woman refused as she did not feel comfortable and agreed to get out of the car in a well-lit are of East Harling. But the man never met her and officers later told the woman the driver was not a policeman.

MORE: 'I had a gut feeling something was wrong' - Woman approached by man driving car with blue flashing lights describes experiencePolice have now issued advice to motorists on what to do if they are in a similar situation and have clarified what their rights are.

A spokesperson for the force said: 'The law states motorists have to stop for a police vehicle displaying blue lights; however, the officer must be readily identifiable as a police officer in uniform.

'If you do get pulled over but you are suspicious, lock your doors, close your windows and ask for the officer to show their identity. You can then call the police on 101 to confirm that identity; however, always dial 999 in an emergency.'

MORE: Woman approached by man driving car with blue flashing lights near Norfolk villageThe woman involved in the suspicious incident, who does not want to be named, said she instantly knew something was wrong when the vehicle pulled up behind her.

'I had a gut feeling as soon as it happened that it was wrong as he had done it out of way so people would not have seen and the only light was my head light and the light from my CD player,' she said. 'But when he came up to me it didn't appear to me to be obviously sinister.

'He wasn't what I would described as old, maybe in his early 30s. He sounded very official and didn't have what I would describe as a Norfolk accent. He was just really nice and polite.'

MORE: What to do if an unmarked police car signals you to pull over