Five people have died following accidents on Northamptonshire roads since Boxing Day.
Nigel Howse, a 61-year-old reitred man from Nether Heyford, died after he lost control of his vehicle on the A5 on Friday, December 28.
Mr Howse was driving a Maserati Coupe G when it left the road and collided with a tree near the junction with Mill Lane at Fosters Booth.
Police are investigating the accident as well as that which killed two men on the A6 near Burton Latimer on Sunday.
The men, aged 30 and 23, driving a blue Vauxhall Tigra towards Kettering at 11.50am, died after a collision with a grey Fiat Punto.
The driver of the Punto, a 27-year-old woman, and passenger were travelling in the opposite direction and received minor injuries.
On Boxing Day a 33-year-old man from Enfield died after a silver Ford Mondeo left the road and collided with a tree. The car was being driven by a man from Daventry who sustained minor injuries.
The car was travelling along Holdenby Road, Church Brampton at 10.15am and contained four passengers.
A 43-year-old woman has also died following an accident on the A14 at around 8.05am on Thursday.
A 64-year-old man, driving a red Porsche Cayman, is being treated for serious injuries at Walsgrave Hospital in Coventry after an accident on Scaldwell Road on Saturday at around 5.35pm.
Huge rise in road deaths - see page 17 for full story