Two thieves tried to steal a bicycle at the Market Rasen train station, but they were stopped by the owner.
Lincolnshire Police have now released pictures of two men, who they believe can help them with their investigation.
The incident happened at approximately 9:40am on September 28.
The first man was described as wearing a black puffer jacket, with black shorts, pink socks, black trainers and tattoos on his hands.
A second man was said to have been wearing a black jacket, black trousers, trainers and a grey top.
If you believe that you recognise any of the two men or have information that could help the police with their enquiry, then call 101 and quote refernce 150 of September 28.