Police were called to a house in Golders Green on Wednesday evening after reports of a wedding taking place there.
Video footage circulating on social media purportedly shows a couple taking part in a ceremony beneath a chupah in the garden.
In one video clip, a rabbi can be seen participating in the ritual, while in another the couple enter a room inside to the sound of music ushered in by a man with a microphone, a photographer and videographer.
Photos shown to the JC reveal a long, decorated table with 20 places and a number of round tables with chairs.