Officers are seeking witnesses and information regarding an incident where a man was reportedly inappropriately touching himself on a bus travelling from Southampton City Centre to Woolston.
Police received the report at around 12.05pm on Tuesday, July 7.
Police wish to speak to this man in connection with the incident (Image: Hampshire Constabulary)
The man, whom police would like to speak to as part of their investigation, has been described as white, aged between 40 and 50 years old, of a large build, with very short hair, and wearing glasses.
He was also seen wearing a dark coloured vest, shorts, and carrying a small bag.
Police have asked anyone who recognises the man or has information which could assist in their enquiries to contact them.
Anyone with information is asked to call police on 101 or report online using their website, quoting the reference 44260323369.
Information can also be provided anonymously to Crimestoppers by calling 0800 555 111 or using their website.