A man is fighting for life following a suspected knife fight in an industrial estate in south-east London.
Emergency services rushed to Erith following reports of a fight involving a man seen with a knife around 8am on Saturday.
Detectives discovered the victim, in his 20s, suffering head injuries in Bilton Road, at the junction with Manor Road.
He was rushed to a south London hospital where he remains with life-threatening injuries, Scotland Yard said.
A man, in his 30s, was arrested at the scene on suspicion of grievous bodily harm.
He is currently being held at a south London police station.
A Met Police spokesman said: “Enquires are ongoing to establish the circumstances of the incident.”
Businesses close to the scene were forced to close on Saturday while police investigated.
Cool Air VW wrote on Facebook: “Due to an incident in Bilton Road this morning, the police have closed the access to our shop, so unfortunately we will be closed today.
“We are still here to answer your calls but please do not try and visit the shop today (Saturday 22nd April) as you will not be allowed access to us. Sorry for any inconvenience caused.”
Anyone who witnessed the incident or has any information is asked to contact police on 101 or via Twitter @MetCC
Alternatively, Crimestoppers can be contacted anonymously on 0800 555 111.