An elderly woman in her 90s is currently in a serious condition after her mobility scooter collided with a bus in Catford, Lewisham.
The incident occurred at around 11am on the A21 Bromley Road.
The woman, who was seriously injured, has been taken to a south London hospital where her condition remains stable.
Police enquiries are ongoing.
The road southbound from A205 Sangley Road to Culverley Road was closed, although lanes have since reopened.