Two people have been arrested and released on bail
Police are investigating the rape of a woman at Plymouth Hoe which occurred at around 3am on Sunday 12 July.
Officers would particularly like to speak to the woman who approached the victim to enquire about her welfare.
A 24-year-old man from Emsworth, Hampshire, and a 22-year-old man from Plymouth, have been arrested on suspicion of rape and released on bail until Monday 10 August.
Anyone who witnessed the incident, or has any information which could assist police enquiries, is asked to call police on 101 or email email@example.com quoting Operation Frostleaf.