Police in the Forest of Dean are appealing for information following a report of a lewd act being committed by a man on a Stagecoach bus.
Officers were called on Wednesday with a report that a passenger on the number 23 bus from Gloucester to Lydney was seen to committing a lewd act.
Another passenger on the bus stated that this took place at around 1pm on the day and officers are appealing for anyone else who witnessed this or may have a description of the man.
Anyone with information about the incident, who knows the man or believes they have seen him acting in this way before is asked to report this to contact Gloucestershire Police on 101.