A reported shooting results in mass panic at Oxford Station, London.
Scotland Yard urged anyone on Oxford Street to "go into a building".
The area will have been packed with rush-hour commuters and shoppers along the shopping street.
A witness said the area around the station had been cleared of people and traffic. Fire engines were heading towards the scene, the witness added.
Another person at the scene said people were running and screaming out of the London Underground station, with many flooding into nearby pubs and shops for cover.
One witness said:
“There were shots fired on Oxford Street and then armed police ran into me and my friend.”
For updates, visit Express.co.uk