British Transport Police have released images of a man they want to speak to in connection with an assault on a member of staff at Bexhill train station.
A man became aggressive and grabbed the staff member's arm in the booking hall in September. The victim was shaken up, but not hurt.
PC Pete Cooke, based at BTP Brighton, said, "Train staff are paid to do a job serving the public, not to receive abuse, and we will not tolerate any attacks of this nature."
More top news
Monday afternoon's weather for the east of the region
Monday afternoon's weather for the west of the region
Monday's weather for the west of the region