The Metropolitan Police were called to Canadian Avenue just after 6pm today (October 20) after reports of a stabbing.
A teenage boy was found at the scene.
He has been taken to hospital, where his injuries are believed to be neither life-changing nor life-threatening.
No arrests have been made yet, and enquiries continue.
Anyone with any information that could help the police have been urged to call 101 quoting CAD 5810/20OCT.
A spokesperson for the Metropolitan Police said: “Police were called to Canadian Avenue, Catford, at 18:01hrs on Monday, 20 October following reports of a stabbing.
“A teenage boy was found at the scene and taken to hospital.
“His injuries are believed to be neither life-changing nor life-threatening.
“No arrests have been made and enquiries continue. If you have any information that could help police please call 101 quoting CAD 5810/20OCT.”