Police investigating a robbery that left a cyclist with serious head injuries have made four arrests.
The suspects, including an 18-year-old, were all detained in London in connection with the investigation.
The cyclist, a 25-year-old student from north-west London, is in intensive care in a west London hospital.
She suffered serious head injuries after falling when her bag was grabbed as she cycled on Harrow Road, Maida Vale in west London on Saturday.
Detectives have not released the name of the victim but Det Insp James Raphael, of the Met Police, said: "One of our main appeals to the public was to help identify her and we are pleased to report we have now done this.
"However our investigation continues and we still need witnesses to come forward and assist us."
Moped riders
The attack took place close to the Travis Perkins roundabout.
Describing the attack, Mr Raphael said: "She was cycling along Harrow Road when suspects on two mopeds approached from behind.
"One has grabbed her bag off her back. This has led to her falling off her bike and hitting her head."
He added that others may also have been involved in the robbery.