Two people are being treated in hospital while four have been arrested after an incident which saw a car mount the pavement and a fight break out among a "large and challenging" crowd.
Police were called to the spot in Wembley, North West London, around 1.30am, after reports of a fight and road collision.
Officers dealt with a "large and challenging" crowd and subsequently arrested four people.
Meanwhile, a man and a woman - both in their 50s - were rushed to hospital.
The woman remains under the care of doctors for serious injuries, the Sun reports.
The man's condition has been assessed as not life-threatening.
Police are appealing for witnesses or anyone with information to call 101, quoting ref 541/12 March.
A Met Police spokesperson said: "At around 1.30am on March 12, police were called to reports of a fight and road traffic collision on Wembley High Road.
"It was reported that a car had mounted the pavement and collided with two people.
"Emergency services attended the location and dealt with a large and challenging crowd of people.
"An investigation was launched by detectives from the Met’s North West CID.
"Four people have been arrested in connection with the incident, and they remain in police custody.
"Enquiries continue to establish the circumstances."
