A man in his 40s was pronounced dead at the scene of a collision in Lingwood at the weekend.
The incident happened at about 3.10am on Saturday, 18th January, on Blofield Road near to the junction with Neves Close.
A silver Mercedes E300 left the road and collided with a tree.
The road was closed while initial investigations took place and was later opened at 9am.
Police say they are keen to hear from anyone who may have witnessed the crash, the driving manner prior to the incident, or who has relevant dash cam footage.
If you can help, contact officers on 101 quoting incident number 46 of 18th January.