A man was stabbed after a fight broke outside a community centre in south London.
Police officers arrested the suspected attacker after chasing him on foot from the Croydon recreation centre.
The victim, who had suffered stab wounds, also ran from the police and was not found.
Officers were called to reports of a fight at Lombard Roundabout in Croydon shortly after 3:30pm on Monday.
Ten minutes later they recieved another call from the recreation centre on Canterbury Road after witnesses saw a man with stab wounds enter the building.
Police have called for the victim to come forward for medical attention.
They believe his injuries are not life threatening.
Police say the suspected attacker was taken to a custody centre in south London.
Enquiries continue.
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