Transport Secretary tells ITV London he has "no objections" to giving Boris Johnson control of rail franchises. @londontonight
More top news
The victim was hit as she crossed the road at a pedestrian crossing in Tulse Hill.
The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.