Thames Valley Police is appealing for information following a serious injury road traffic collision in Buckinghamshire.
The collision occurred in Whitchurch Road, Cublington, at about 4.40pm on Friday 26 June.
It has been reported that a white van, possibly a Transit, was travelling on the wrong side of the road.
The driver of a grey Peugeot Partner van took evasive action to avoid the white van.
The Peugeot then collided with a grey BMW 3 Series travelling in the opposite direction.
The front seat passenger of the Peugeot sustained a broken leg, while the driver of the BMW sustained a broken wrist. They were both treated at hospital following the collision.
Investigating officer, PC Martin Woodford, of the Roads Policing Unit, said: “We are trying to identify the driver of the white van who left the scene possibly not knowing a collision had occurred.
“Anyone with any information is urged to contact the force as soon as possible. You can leave information on our website or by calling 101, quoting investigation reference number 43200193263.
“Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.”