A suspect has been caught after a huge police search in Tiverton.
A police helicopter was seen circulating the Wilcombe area of Tiverton at around 12.40pm today.
A spokesperson from Tiverton police station said: "We were looking for an individual who has now been detained."
The person is currently in police custody in Exeter.
Officers have been searching for a man who threatened a teenager with a knife and stole his cash yesterday.
The incident happened just before 1pm at the entrance to People’s Park in Tiverton, near the Exe Valley Leisure Centre in Bolham Road.
The offender, who is thought to be between 18 and 25, threatened the 18-year-old man before making off with his money and a mobile phone.
The suspect is also believed to have approached another man in the walkway between Morrison’s supermarket and Market Carpets shortly before the robbery.
The police helicopter was also seen hovering over the town at around 1.30pm on Wednesday to try and locate the man who ran off.