Police have closed Selfridges department store on Oxford Street after a stabbing, eyewitnesses have said.

Video shows police in Manchester Square in central London holding the arm of a man in a blue top. Several police vehicles are on the scene.

An eyewitness says there was a fight between three men on the first floor of the department store at around 7:30pm.

"Then I went outside to Duke Street [near Manchester Square] to film the police who caught some of the suspects," said the eyewitness.

Forensics are at the scene of the stabbing in the store, the eyewitness added.

Suspect in stabbing held by police at Duke Street in central London after a stabbing at Selfridges department store on Oxford Street.

Police have closed Selfridges after a stabbing at around 7:30pm and forensics on scene.

This video is filmed from Duke Street, looking towards Manchester Square.