A man has been arrested after a teenager was allegedly sexually assaulted on a bus.

The incident is said to have happened on an overnight bus travelling between Hamilton and Glasgow from London Victoria on October 31, 2012.

A man, 47, has been detained in connection with the alleged assault involving an 18-year-old woman.

He is expected to appear at Glasgow Sheriff Court on Thursday.

A report will be submitted to the procurator fiscal.