Two men have been reported to the procurator fiscal in connection with an alleged assault on a 16-year-old boy on a train.
British Transport Police (BTP) had appealed for witnesses after the alleged attack on 16:42 Glasgow to Kilmarnock service on Saturday 14 January.
The two men are aged 26 and 27.
A BTP spokesman said inquiries were ongoing to identify others believed to have been involved in the incident.
