Police have released CCTV footage

On the morning of the assault, the victim was followed by a man as she walked along Hammersmith Grove, past Hammersmith Underground station.
He caught up to her and sexually assaulted her before running off towards Hammersmith Broadway.
The woman is currently being supported by specialist officers.
After the victim reported the sexual assault, the police immediately launched an investigation.
The man in question was seen running north on Park Road toward Browning Avenue before heading to a residential area.
