A man hunt is underway after a woman was sexually assaulted on board a Northern Line tube last year.

Detectives have now released a CCTV image of a man they believe could help with their investigation.

The victim was travelling on a southbound Northern Line Underground train on 11 July, 2022, at around 8.35pm when a man began staring at her.

As he left the train at Stockwell, he sexually assaulted her.

British Transport Police (BTP) officers believe the man travelled on to Brixton.

If you recognise the man pictured or have information that can help police in their investigation, contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 673 of 11/07/2022.

Alternatively, you can maintain anonymity by contacting Crimestoppers on 0800 555 111.