Two young men have been rushed to hospital after a double stabbing on a busy road in north London.
Police and paramedics rushed to Adelaide Road, a short distance from Chalk Farm Tube station, just after 7am on Friday.
Two men, both believed to be aged in their early 20s, were found with stab injuries.
One man, who had been stabbed repeatedly, was found outside Constable House. A second man was found nearby suffering from a single stab injury.
Paramedics took the first man to a hospital in central London. Police fear his injuries may be life-changing.
The second man was taken to an east London hospital where he remains. His injury is not believed to be life-threatening.
A crime scene remains in place, police said. There have been no arrests.
Anyone with information is asked to contact officers at the Central North Command Unit via 101 quoting reference Cad 6871/20Sep or contact the independent charity Crimestoppers anonymously on 0800 555 111 or by visiting their website.
Any young people who have information about violence or knife crime can visit www.fearless.org where they can pass on information anonymously.
