London police found no casualties Friday after investigating reports of shots fired at a busy subway station. Police initially responded as if the incident were terror-related, but later said they "have not located any trace of any suspects, evidence of shots fired or casualties."
London Subway Incident
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Armed police officers stand on Oxford Street, London, Britain, Nov. 24, 2017.
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People run down Oxford Street, London, Britain, Nov. 24, 2017.
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Armed police run along Oxford Street, London, Britain, Nov. 24, 2017.
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Armed police walk along Oxford Street, London, Britain Nov. 24, 2017.