The emergency services were called to the junction of Wells Park Road and Longton Avenue at 6.45pm yesterday (March 16).
The ambulance service arrived and treated two people before taking them to hospital.
Wells Park Road was reported 12 hours later by the AA as still closed for “crash investigation work”, but is no longer reported as closed.
A London Ambulance Service spokesperson said: “We were called at 6.45pm on Sunday 16 March to reports of a road traffic collision at the junction of Wells Park Road and Longton Avenue, SE26.
“We sent ambulance crews to the scene and treated two patients before taking them to hospital.”
The Metropolitan Police was contacted for details but did not respond with comment.