A man is in hospital after an altercation at Royal Oak and Imperial Street.
Staff Sergeant Steve Crawford says Burnaby RCMP arrived around 1:00 to find an injured man.
"Burnaby RCMP located a victim who was bleeding, suffering from injuries. He was ultimately transported to hospital for treatment. And through immediate further investigation we located the person we believe to be the suspect. He's been arrested. He's been brought back to the Burnaby RCMP detachment."
Police say a weapon was involved.
They are not identifying the victim or the assailant, only saying the men ranged in age from mid 20s to mid 30s.
No word yet on the condition of the injured man.