London's Edgware Road has been closed off by officers from the Met Police following reports of a stabbing in the area.
Three people are being treated following the incident which left two men taken to a major trauma centre while one woman was rushed to hospital.
Video footage circulating on social media shows officers from the police force cordon off the junction close to Seymour Street following the incident, close to the iconic Marble Arch.
Ambulance crews and the fire brigade are also on the scene of the incident, as well as a stationary bus.
Police officers can also be seen standing close to police tape, blocking both sides of the area.
Local business inside the cordon includes the likes of takeaways and technology stores.
Westminster Police force has taken to social media to confirm that a Section 60 order is in place until 6am.
They said: "A Section 60 has been authorised from 0117 hours until 0600 hours by Insp HUGHES. The authority is for North Westminster. This is due to a stabbing that occurred on Edgware Road."
A spokesperson for the London Ambulance Service told Daily Star: "We were called at 12:34am this morning [01 January] to Edgware Road, W2, to reports of an incident.
"We sent a number of resources to the scene including an incident response officer, an advanced paramedic, three ambulance crews and an advanced trauma team car from London's Air Ambulance.
"We treated three people at the scene: two males and one female. We took both males to a major trauma centre and the female patient to hospital."
The Metropolitan Police confirmed they were contacted by the London Fire Brigade at 00.32am to reports of a stabbing on Edgware Road.
Paramedics from London’s Air Ambulance also attended the scene..
The conditions of the three victims is unknown.
One woman has been arrested.