A man is fighting for his life after a stabbing outside a train station in South London.
Police were called to the scene in Streatham shortly after 6pm.
Officers said two males were taken to hospital, with one in a critical condition, My London reports.
No details have been released about the injured two, but witnesses at the scene have suggested they are teenagers.
A large cordon has been put in place around the scene as police investigate the double stabbing.
The Metropolitan Police said the two were stabbed during a fight outside Streatham train station at around 6.10pm.
An air ambulance was dispatched to the scene as the youths were given critical care.
In a statement on Twitter, Lambeth Police said: "Police were called at 6.10pm to reports of a fight near #Streatham station. Two males (no further details) were taken to hospital for treatment to stab injuries; one of whom is in a critical condition.
"No arrest yet. Witnesses pls call 101 ref 5960/07sep"
One witness said on Twitter: "What’s going on in Streatham. It seems pretty big. There’s an air ambulance. Hope everyone’s ok."
Another added: "Another young person stabbed in Streatham. What is wrong with our young people."
