The A21 Bromley road closed after the incident near the Bellingham train station around 4 pm yesterday (April 23).
Emergency services attended and a man was treated on the scene by an ambulance team.
Then it was tasks to the hospital “as a priority”.
The road, which is on the border of Lewisham and Bromley, was blocked after the accident between Carstairs Road and Bellingham Road and attacked at night.
A spokesman for the London ambulance service said: “Yesterday they called us at 4.1 (April 23) for reports of a traffic collision in Bromley Road, Se6.
“We send an ambulance team to the scene.
“We treat a patient on the scene and take him to the hospital as a priority.”
The Metropolitan Police was contacted to comment.