Police describe incident near London's Natural History Museum as a collision and say the motive was under investigation.
British police say a number of pedestrians have been injured near London's Natural History Museum and that a man has been detained at the scene.
British media reported on Saturday that a car had mounted the pavement outside the popular tourist attraction in the Sourh Kensigton area of the UK capital.
Police described the incident as a collision and said the motive for the incident was under investigation.
Police and forensic officers stand in a road near the Natural History Museum [Peter Nicholls/Reuters]
"Inquiries to establish the circumstances and motive are under way," police said.
The crash happened at 220pm (13:20 GMT) on a day when the central London museum is usually teeming with pedestrians, including international tourists. Photographs showed a dented silver car and a man being pinned to the ground outside the museum.
The museum said on Twitter it was working with police after "a serious incident" outside and would provide more information later.
The police statement said officers were on the scene and that London Ambulance Service had been called. The Ambulance Service said it was responding.
Britain is on its second highest security alert level, meaning an attack considered highly likely, and there have been five attacks already this year, three involving a vehicle.
Source: News agencies