© Reuters
Horrified witnesses claimed passengers were seen "running in panic" as the busy station was evacuated today.
Some reported a person was stabbed after around 20 people were seen fighting but police have not released any details yet.
The station is understood to have reopened following the "police incident".
© Twitter / KateCzylok1 Euston station has been closed after a police incident
"As soon as I reached the gate, security closed it off. One of them told me there's been a stabbing. I really hope the person who was stabbed will be OK."
Another said: "Loads police and armed police right now in London Euston train station something is kicking off [sic]."
While one person tweeted: "Armed police everywhere and underground being evacuated - absolute madness happening at Euston station".
Knife crime has rocketed in bloodbath Britain - with 40 blade offences every day in the worst hit areas.
The horrifying revelation comes after London suffered its bloodiest year in more than a decade, with 149 murders in the capital in 2019.
P.C. Bullsh*t! For my entire life, whenever a robbery by a white guy occured/occurs, the BOLO description as printed in the paper will say,
White male, 5'10"; medium build, red hair, cut very short, blue eyes.
Black male (the FAR more common robbers): Male, ~5'10", medium build, dark hair dark eyes.)
R.C.