A man who was found with stab injuries in a residential road in Queen's Parkremains in a critical condition in hospital.
Police rushed to the scene in Portnall Road, Westminster, after being called out at around 12.20pm on Wednesday (October 11).
The victim was rushed to a central London Hospital where he remains in a critical condition.
London Ambulance Service and London Air Ambulance attended the scene.
Witnesses described seeing "blood everywhere" while another described the scene as "carnage" as police stormed the area.
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The man was found near Jubilee Sports Centre, which has been closed until further notice.
getwestlondon approached the centre for comment but a spokesman declined.
Any arrests in connection with the incident are yet to be made and detectives from Westminster Police are investigating.
You can follow updates on the incident in our live blog .
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