Witnesses to a crash on the A1 near Claypole are being sought by police.
Five people were seriously injured in the crash, which involved a red Mazda and a dark coloured Ford Mondeo, and happened at about 5pm on Monday, April 28.
The Mazda was crossing the southbound carriageway of the A1, having come from the direction of Claypole, when it was in collision with the Ford, which was travelling south.
Police are keen to trace witnesses and believe the occupants of two vehicles, which turned off into Claypole shortly before the collision, may have seen what happened.
Witnesses or anyone with information is asked to call Nottinghamshire Police on 101, quoting incident number 744 of April 28, 2014.