A man who drove into a police cordon in south London desperate for help after being stabbed is fighting for life in hospital.
The victim, aged in his 20s, sped through police tape while officers investigated a car crash in leafy East Dulwich, witnesses said.
As officers reopened one side of Lordship Lane the black BMW reportedly narrowly missed police officers before the driver got out “covered in blood”.
Bystander, James Stott, 27, described dramatic scenes as officers fought to save the man.
He said: “I though the car was going to hit a police officer then it came to a really sudden stop and a man got out covered in blood.
“The next minute he was on the floor getting treated. It looked like he’d been stabbed in the stomach.”
Scotland Yard said the man was in a critical condition at a south London hospital.
Detectives are working to establish who he became injured.
A spokesman said: “Enquiries continue to establish how and where the man came to sustain his injuries.
“It is not linked to the original collision that officers were dealing with.
“No arrests, enquiries continue.
“Officers from Southwark investigate.”