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Police say they need information about a suspicious incident in Lechlade.
A teenager was walking through Perrinsfield with two friends ataround 9.15pm on Tuesday when he saw a white van.
Two men opened the rear doors and asked the 13-year-old if he wanted to get inside.
The boy refused and called out to his older friends who ran back to him. The men then shut the van door and drove off on the A361 towards the town centre.
The boy was left shaken but otherwise unharmed.
The vehicle is described as a large white van, and may have had a chiller unit on top and a missing rear number plate.
One of the men is described as being white, 6ft 2ins tall, slightly overweight, and wearing a puffa-style jacket with tracksuit bottoms.
The second male is said to be bald, also white, aged in his 30s, and around 5ft 8ins tall. He was wearing jeans and a white t-shirt.
Anyone with information is asked to call Gloucestershire police on 0845 090 1234 quoting incident number 487 of March 22.
Alternatively you can call Crimestoppers anonymously in 0800 555 111 or visit http://hhtp//www.crimestoppers-uk.org