Child photographed in armlock on train to Manchester Published duration 25 July 2016

image copyright Trinity Mirror image caption The photograph of the elderly man and boy taken on the train from Clitheroe to Manchester Victoria station

Photographs have emerged purportedly showing a man putting a young boy in an armlock on a train to Manchester.

The incident on a Clitheroe to Manchester Victoria service on Friday was reportedly snapped by another child travelling with the youngster.

A witness told the Manchester Evening News the man acted after the "cocky" boy would not take his feet off a seat.

British Transport Police are investigating and appealed for witnesses to come forward.

No arrests have been made.

"Hopefully the public can come forward with some information."

Northern Rail confirmed the children were travelling unaccompanied and the incident was not witnessed by a member of their staff.