It's said to have happened between 11pm and midnight on Boxing Day on Rack Park Road in Kingsbridge.
The victim was a local woman in her 40's.
Police arrested and questioned an 18-year-old man - he's since been released on police bail until 23rd January.
Manhunt underway for wanted Plymouth man
It follows reports of an assault
Woman sexually assaulted near Methodist church
It happened on the A388 at Liftondown
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Bay benches cost more than Westminster
Exeter Airport sold to investment firm
The deal includes two other airports
Woman dies in A30 slip road collision
Man suffers serious injuries
Sexual assaulted reported in Plymouth
The man pictured could help police enquiries
