Police are searching for a man who is alleged to have sexually assaulted two women on a train on separate occasions.
British Transport Police is investigating both incidents which happened on July 4.
The first victim, a 39-year-old woman, was travelling on the Birmingham New Street to Stansted Airport Cross Country train at 7pm.
She became aware of two men, one of whom sat next to her and asked her to kiss him, which she refused.
The man then is said to have stroked the woman’s right arm and pulled her top down.
He is accused of leering down her top and touching her inappropriately, before thanking her and leaving the train at Peterborough.
The same man is then believed to have boarded the 7.40pm Peterborough to Nottingham train.
He sat next to a 20-year-old woman and allegedly kissed and bit her cheek before leaving the train.
Officers have released images of the two men who they believe could have information which would help the investigation.
They are also keen to hear from anyone who may have been travelling on the services and witnessed either incident.
Anyone with any information should contact British Transport Police on 0800 40 50 40 or text 61016 citing reference 270 09/08/2017.