Emergency services were called to Farley Mews, near Mountsfield Park, today (October 15) at 8.06am to reports of a stabbing.
A man was treated at the scene and rushed to hospital.
It follows after hours earlier, emergency services were called to Rushey Green, outside Catford Centre, to another stabbing just after 3am.
A man was rushed to hospital after the first paramedic arrived within three minutes.
We are yet to hear the condition of both men.
It is also unclear at this time whether these two incidents are linked.
However a cordon remains in place at Rushey Gren from the A205 by Catford Gyratory to Honley Road and Wildfell Road, as well as a separate one near Honley Road up to Mountsfield Park.
Forensics are at the scene.
The Metropolitan Police has been approached for more information.
