A kitchen porter who police mistook for escaped prisoner Daniel Khalife said the experience was "nerve-wracking".
Horatio Castille from Banbury in Oxfordshire says he was handcuffed by officers after they received a possible sighting of Mr Khalife, who is on the run after escaping from Wandsworth prison.
A video of 19-year-old Mr Castille's arrest was viewed thousands of times.
The Metropolitan Police confirmed the man was not Daniel Khalife.
Thames Valley Police has been approached for comment.
On Thursday, Mr Castille was waiting at Banbury station for a train to London when Thames Valley Police officers approached him.
While sat on a bench on the platform, he was put in handcuffs and told that they had received a phone call from a woman who said he matched the description of Mr Khalife.
"They told me about this Daniel guy who's broken out of prison, and showed me a picture of him and I was like 'no, no, that's not me'," he explained.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Over the next few minutes, about 20 other officers then turned up on the platform.
Mr Castille said his fingerprints were taken and cross-checked on the police's database.
"I wouldn't say it was scary, but I would say it was kind of nerve-racking as you can imagine, just randomly being put in cuffs."
He said the officers were "very professional" and that he felt lucky that it had been a "positive experience".
"I could see why someone would see me and think it was the same guy."
A Met spokesperson said: "We are aware of a man being stopped by police in the Banbury area.
"We have liaised with colleagues in Thames Valley and confirmed the man in question is not Daniel Khalife."
Mr Khalife, 21, who escaped from prison on Wednesday, is accused of trying to spy for an enemy state, understood to be Iran, and plotting a fake bomb hoax.
On Friday a sighting of Mr Khalife near the Wandsworth roundabout was being investigated by the Metropolitan Police.
Follow BBC South on Facebook, Twitter, or Instagram. Send your story ideas to south.newsonline@bbc.co.uk.
Khalife spotted walking from food van, police say
How was a terror suspect able to escape prison?
Khalife said he would become famous – kitchen inmate
Mixed reaction to new bridge lights proposal
Young bull rescued by firefighters after getting stuck in bog
Firefighters rush to new hotel in town
Motorist slams 'traffic mayhem' as 'absolute farce'
Temple Cowley Pool closes for a £3m revamp
Bungled council email 'approved by someone with zero common sense'
Israel warns Gaza residents to flee homes ahead of revenge attacks
Hamas attack shocks Israel, but what comes next?
Hundreds feared dead in powerful Afghan earthquake
How did Israeli intelligence fail to stop major attack?
Rebuilding shattered lives after Ukraine’s dam collapse
Nasty campaign heralds big vote for German populists
George Weah wants extra time despite Liberia woes
Fashion, football and frontline politics: Photos of the week
World Cup: Can the roar of home fans help India win?
A shipwreck worth billions on the ocean floor. Video
Conker world championships: What makes a winner?
Weekly quiz: Which university is opening a world of magic?
Why do people love living in Canada?
The return of a divisive lingerie brand
New maps of Earth's lost continent
© 2023 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.
