PC Jon Riddell, from British Transport Police, is appealing for information following an unprovoked attack on a woman who had been sitting at New Street Station tram stop on Tuesday 10th January.
The woman, who is in her 30s, was sat at the tram stop, at around 7.30pm, when a man came and sat down beside her.
He then punched the woman to the left of her jaw and then followed up with another punch to the same side of her face.
The man then headed off from the scene up Corporation Street.
PC Riddell said: “This was a totally unprovoked attack which has left the woman feeling extremely distressed. She was in extreme pain and her skin had completely reddened.
“I would like to speak to the man seen in the CCTV footage. I am also keen to speak to anyone who was in the area at the time or has any information about the man.
“Nobody should have to experience this kind of violence or behaviour. Any information big or small can help with the investigation so please get in touch by calling the number below.”
Anyone with any information should contact British Transport Police on 0800 40 50 40 or text 61016 citing reference of 270 of 24/01/17. You can also pass information anonymously to Crimestoppers on 0800 555 111.