London Ambulance Service said Monday that a man was killed and two other men injured following a stabbing incident outside Parsons Green tube station in southwest London.
The attack happened shortly after 7:35 p.m. BST as the last wave of commuters journeyed home from work.
The three victims, all male, were treated at the scene and one has been taken to hospital.
A spokeswoman for the Metropolitan Police said, "Officers are responding to an incident at Parsons Green where a number of males have suffered stab injuries."
"Police were called at 1937hrs on Monday, Oct. 16 to reports of a stabbing outside Parsons Green Tube Station," she said.
Police and paramedics are currently at the scene on Parsons Green Lane and both the road and tube station was shut off by officers, police said.
What happened at Parsons Green is not being treated as terror-related, London Ambulance Service said.
The knife attack comes a month after a bomb exploded at the District Line station during the morning rush hour commute into central London.
Despite the homemade bomb's failure to fully detonate on Sept. 15, some 30 people were injured in the blast.
Police made at least six arrests in connection to the botched bomb plot, ranging between the ages of 17 to 48.