London police found no casualties Friday after investigating reports of shots fired at a busy subway station.
To date police have not located any trace of any suspects, evidence of shots fired or causalities. Police said they were responding "as if the incident is terrorist-related" but has not said whether they believe it is.
The Metropolitan Police issued a statement saying they responded to an "incident" at the Oxford Circus station.
Stuart Crichton, London Ambulance Service assistant director of operations, said: "We checked over and treated several patients who sustained injuries while leaving the Oxford Circus area".
The area, full of big-name chain shops and department stores, was packed with shoppers browsing Black Friday sales.
Footage by one eyewitnesses shows people running down a street.
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Armed police reached the station less than a minute after the first calls were received.
There are also reports that an electric fault at Oxford Circus station may have been the cause of the "gunshot" noises.
The search went on for an hpur but the police could neither find a suspect nor evidences of firing.
Metropolitan Police have been called on to the scene after reports of shots fired at the Oxford Circus tube station.
"We were in the Kingdom of candies and then saw a massive crowd of people running and screaming". The British Transport Police have released CCTV photos of two men who may have been involved in the original incident, and are asking for any information from the public. I'm inside" before adding, "Really not sure what's happened!
Some stores filled with people taking shelter; others were evacuated. Updates will be provided as soon as we have them.