Emergency services were called to reports of a stabbing at 10.15am outside the Argos distribution centre, near the Asda Wallington Superstore.
Here is an update on everything that you need to know:
‘Everyone involved knew each other’
Police believe that everyone involved in the Marlowe Way attack today (January 23) knew each other.
Five people- a man in his 50s, two men in their 30s and two men in their 20s – were taken to hospital with stab wounds.
But all are said to be in a non life-threatening condition.
Man arrested and taken to hospital
A 30-year-old man was arrested nearby on suspicion of grievous bodily harm and possession of an offensive weapon. He was also taken to hospital with injuries that were not life-threatening.
Hero ‘hit attacker with fire extinguisher’
Joseph Denton, 29, claims he hit the knifeman in the head with a fire extinguisher during the attack at the warehouse.
Suspect was arrested within an hour
Chief Superintendent Andy Brittain, local policing commander for south London, said: “Officers responded quickly and arrested the suspect within an hour. An investigation is now under way.
“Based on initial enquiries we believe all those involved knew each other. Therefore we do not believe there is any wider risk to the public.”