Detectives investigating the rape of a woman near St Thomas' Hospital in the early hours of Tuesday are appealing for assistance in identifying a man shown in CCTV footage.
Police were called to Royal Street, opposite St Thomas' Hospital, at 1.23am on Tuesday 12 November to a report of a rape.
A woman in her forties was physically assaulted before being raped by an unknown man on Royal Street, near the junction with Lambeth Palace Road.
The woman is being supported by specialist officers.
DS Paul Barham is investigating the incident. He said: "This is clearly a horrific incident and we are doing all we can to support the woman and find who is responsible.
"The man in the CCTV is wearing distinctive clothing so I appeal to anyone who recognises these items of clothing or believes they know who the man is to contact us straightaway."
No arrests have been made; enquiries continue.
Anyone with information is asked to contact police on 101 quoting reference CAD 379/12NOV.
You can also contact the independent charity Crimestoppers anonymously on 0800 555 111.
For the latest local news and events direct to your inbox every Monday, you need our weekly email newsletter SE1 Direct.