Detectives from the Serious Collision Investigation Unit (SCIU) are appealing for witnesses, or anyone with dash-cam footage, to come forward in connection with a traffic collision in Forest Road, Walthamstow, E17, that has left a man with life-threatening injuries.
The collision occurred at approximately 01:06 hrs on Saturday, 12 May 2018.
Officers attended, along with the London Ambulance Service and the London Fire Brigade.
A light coloured BMW was in collision with a cyclist and a number of parked vehicles on Holmes Avenue junction with Forest Road, E17.
Just prior to the collision the car failed to stop for an unmarked police vehicle.
The cyclist - a 28-year-old man - has been taken to a London hospital and remains in a critical condition.
His next of kin have been informed. There are no reports of other injured parties.
A 22-year-old man from Tottenham voluntarily attended an east London police station on Sunday, 13 May.
He was arrested on suspicion of causing serious injury by dangerous driving and other driving offences.
He has been released under investigation.
The Directorate of Professional Standards (DPS) has been informed as is routine.
The Independent Office for Police Conduct have also been informed and launched an independent investigation.
The Serious Collision investigation Unit is carrying out enquiries into the circumstances of the collision.
Anyone who witnessed the collision, is asked to call officers from the Roads and Transport Policing Command on 0208 597 4874. Or contact via Twitter @MetCC. Quote CAD 216/12MAY
To give information anonymously contact Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org