London underground stations reopen after Oxford Circus incident
Police said there is no evidence that shots had been fired or that there were any serious casualties
 "Oxford Street")
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People are ushered by a police officer down a street in the west end of London after Oxford Circus station was evacuated (Photo: AP/PTI)
Two London underground stations on Oxford Street have reopened after an incident that police initially treated as if it might be terrorist-related, the city's transport authority said on Friday.