Police and paramedics descended on an area of south London after a hoax caller rang police to report a stabbing and mass brawl among youths.
Emergency services raced to Kennington Tube station at just after 7.05pm on Wednesday following a report a young person had been stabbed.
The 999 caller had reported a gang of young people fighting on Kennington Park Road, just outside the Underground station.
But Met Police told the Standard on Thursday it was treating the call as a hoax.
Photos at the scene showed a large police presence as concerned passers-by watched the scene unfold.
The prank emergency call came just over four hours after London was shaken by a horrific terror attack in Westminster after a knife man ploughed a car into pedestrians before stabbing a police officer to death.
The public had been urged not to call 999 unless it was a "genuine emergency" after the attack.
On Thursday morning a spokesman for the Met Police said officers are treating the Kennington incident “as a hoax call made to police”.
He added: “Officers attended and did not find any evidence of anyone injured or any disturbance.”
