A teenager was spotted waving a BB gun out of a moving vehicle in Leyland, say police.
Police pulled over a Red Ford at around 3.45pm on Monday after the incident was reported to police on Golden Hill Lane.
A police spokesman said in a post to Twitter: "Waving a BB gun around out of a moving car is highly dangerous and very stupid.
"This 15-year-old didn't realise the ramifications, so words of advice given on this occasion.
"Good teamwork between our different TacOps departments though in stopping the vehicle."