A man was stabbed outside Nunhead’s The Ivy House pub on Sunday night.
Officers were called to Stuart Road at around 8.25pm on August 15.
The victim, believed to be in his 30s, is being treated in hospital. He is said to not have life-threatening injuries.
There have been no arrests so far as officers continue enquiries.
Meanwhile, as of Monday, the cooperative-owned pub remained closed after the incident.
In a short statement, the pub’s managers said: “Our current priority is the wellbeing of our team, therefore, we will remain closed until we all feel comfortable, have digested the incident and decided on next steps together.”
Anyone with information should call police on 101 or contact the independent charity Crimestoppers on 0800 555 111.