Oxford Circus: Platform 'altercation' caused tube panic Police have released images of two men they want to speak to, after an altercation at a central London Tube station created mass panic on Friday. Officers want to speak to anyone who was at Oxford Circus underground station at the time of the evacuation. Sixteen people were treated after they were injured fleeing the station, following reports of gunshots being fired on a Central Line platform. There was no evidence any weapons had been fired, police said. Shoppers were barricaded inside stores on Oxford Street and armed police were deployed after the alarm was raised during the evening rush hour on Black Friday. Police initially treated the incident as potentially terrorism-related, before standing down. The British Transport Police said it believed there had been an altercation between two men on the platform before the scare. Oxford Circus scare: As it happened The Metropolitan Police said it began receiving "numerous" 999 calls reporting gunshots in Oxford Street and at Oxford Circus station at 16:38 GMT on Friday. The first armed response vehicle was on the scene in less than a minute from receiving the first call, the force said. Oxford Circus - where Oxford Street and Regent Street meet - was cordoned off, while shops and businesses were placed in lockdown. In a statement, the Met Police said: "No casualties, evidence of any shots fired or any suspects were located by police." But 16 people were injured as passengers fled from Oxford Circus station, in what witnesses said was "a stampede". One patient was transferred to a major trauma centre for leg injuries, while eight people were taken to central London hospitals for minor injuries. By 18:05 GMT, the police operation had been stood down. In a statement , Mayor of London Sadiq Khan praised the city's emergency services for a "swift response". 'Mass stampede' BBC reporter Helen Bushby said she had seen a "mass stampede" of people running away from Oxford Circus station. "They were crying, they were screaming, they were dropping their shopping bags. It was a very panicked scene," she added. "People said they heard a gunshot and panic was just spreading." According to BBC correspondent Andy Moore, eyewitnesses reported being evacuated from the tube station on the instructions of a generic announcement. They came up to street level in a state of confusion - some reporting loud bangs - spreading panic among shoppers which quickly passed down the street and onto social media. The British Transport Police told those in the area to "go into a building and stay inside until further notice". People barricaded themselves into shops, many of which went into lockdown - including Selfridges, which is half a mile down Oxford Street from Oxford Circus. Singer Olly Murs, who was shopping in Selfridges, told his 7.8m followers on Twitter: "Get out of Selfridges now gun shots!! I'm inside." He added: "Really not sure what's happened! I'm in the back office... but people screaming and running towards exits!" Mr Murs, who was later criticised for spreading panic, said afterwards: "It's easy to say now it was nothing but in a state of shock and panic I was trying to make people aware of what was happening. Which I was led to believe by staff and customers that someone was shooting." Selfridges later said on Twitter that it was evacuated "as a precautionary measure". It added: "We have been working with @MetPoliceUK and can confirm that there were no reported incidents in store." Related Topics Metropolitan Police Service British Transport Police Share this story About sharing More on this story Oxford Circus Tube incident: As it happened 24 November 2017 Footage of people fleeing Oxford Circus 24 November 2017 'People were running, screaming' 24 November 2017 Top Stories Egypt vows forceful response after massacre A devastating gun and bomb attack on a mosque in the Sinai peninsula killed 300 people. 25 November 2017 'I saw 10 armed people in mosque attack' 25 November 2017 'Altercation' caused Oxford Circus panic 25 November 2017 Features Witness: The Litvinenko murder Reality Check: Fake Sinai photos on social media Review: George Clooney's Suburbicon ★★☆☆☆ Catching fly-tippers in the act How INXS Kick-started their career 'I'm surprised that football fanzines have survived' The firms being creative with food destined for the bin The early Christmas gift everyone's buying Week in pictures Elsewhere on the BBC Honey is bee vomit 8 unbelievable facts about animals Daily news briefing direct to your inbox Sign up for our newsletter Why you can trust BBC News BBC News Services The BBC is not responsible for the content of external sites. Read about our approach to external linking. MET POLICE At 16:37 we were called to Oxford Street Tube following reports of shots fired. Armed officers from BTP