British Transport Police received reports of a fight taking place in the booking hall at Skegness Railway station on Monday, April, 28, at 3.43pm.
A male sustained head injuries and was taken to hospital where he received treatment.
The British Transport Police have launched an investigation and are appealing for witnesses.
Anyone with any information is asked to come forward by calling 0800 405040 or texting 61016.
The number of the incident is 327 of April 28, 2014.