At 8.10m on Friday, 15 July, Met Police policers supported by Armed Police were called to Coston Walk, SE4, for reports of a shooting.
Officers were present, as were paramedics from the London Ambulance Service (LAS). A helicopter was also dispatched to the scene.
A woman in her fifties was discovered with back wounds caused by a firearm
Paramedics treated her at the scene and she has since been airlifted to a London trauma centre.
Police are waiting for an update on her condition.
A crime scene has been established. No arrests have been made. Inquiries are still ongoing.
