George Michael faces police questioning over his recent car accident, which saw him fall out of the passenger side of a Range Rover on the M1.
The 49-year-old singer is still being treated in hospital following last Thursday's incident and investigating officers are keen to establish exactly what happened, having already spoken to the car driver.
A police spokesperson said: "We have definitely not spoken to the 49-year-old male."
Police sources told the Daily Mirror the accident was still unexplained and "far from cut and dried", with motoring experts saying it would be "very, very difficult" to fall out of the vehicle, which was travelling at around 70pmh.
Autocar Magazine columnist Colin Goodwin said: "It has a huge side impact bar running through the middle, and electronic motors and equipment for the windows and locking system, which means it takes real effort to open it."
Michael's spokesperson said: "Following the traffic accident on Thursday, we can confirm that he is still in hospital. We are keen to stress it's purely as a precaution for observation.
"He did suffer a couple of bumps and bruises to the head and that's why they are keeping him in - to keep an eye on him. He is doing better. He is making good progress and is looking forward to getting out."