A lane of the A501 Marylebone Road is blocked after a rush hour collision.
Police confirmed they were called to the scene of the crash at 7.10am on Friday (September 29).
The outside lane of the A501 is blocked westbound at Park Crescent.
Transport for London has warned to expect delays and traffic on the approach.
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London Ambulance statement
A London Ambulance Service spokesperson said: “We were called at 6.59am today to Marylebone Road, NW1 to reports of a road traffic collision.
“We sent an ambulance crew to the scene.
“We treated a man at the scene for a knee injury and took him to a major trauma centre as a priority.”