Detectives from the Sexual Offences, Exploitation and Child Abuse Command are investigating the rape a woman in Finchley.
The offence happened shortly after midnight Friday, 10 into Saturday, 11 June in Long Lane, N3 when the victim – a woman in her 20s – was dragged from the street into a garden and attacked by an unknown man.
The victim is being provided with support by specialist officers.
There have been no arrests and enquires continue.
Any witnesses or anyone with information can contact the investigation team via 101.
To give information anonymously Crimestoppers can be contacted on 0800 555 111 or at crimestoppers-uk.org.