Police sealed off two separate areas earlier, Wrythe Lane and Buckhurst Avenue.
Statement from Met Police:
“Police were called at 11:30hrs on Thursday, 30 January to reports of a stabbing in Green Wrythe Lane, Carshalton.
Officers, the London Ambulance Service and London’s Air Ambulance attended.
A 17-year-old boy was taken to hospital with stab injuries. We await an update on his condition.
Enquires remain ongoing.
Officers are appealing to anyone with information to call 101 and quote CAD 2789/30Jan.
You can also provide information anonymously to the independent charity Crimestoppers on 0800 555 111.”
The news comes after a 15 year old boy was stabbed in Kingston last night.
The incident happened in New Road near Richmond Park.
He was taken to hospital where his injuries are thought to be potentially life changing.