Cops are hunting for a car involved in a fatal smash which left one driver dead.
John King, 63, from Ballingry, Fife, died at the scene on the A92 near the Cowdenbeath junction on Saturday evening.
Two boys, aged 12 and one, were also injured and were taken to the Victoria Hospital in Kirkcaldy for observation.
Police were initially called to reports of a one-vehicle crash.
But officers now know the red Vauxhall Meriva John was driving and a black 4x4 collided before his car toppled over at 9.55pm.
Inspector Andy Mather, of Fife Road Policing, said: "We have now established that another vehicle collided with the Vauxhall prior to it leaving the road.
"Inquires are ongoing to confirm the other vehicle involved and identify the driver."
Officers are appealing for anyone travelling in Cowdenbeath and Lochgelly or on the A92 dual carriageway around 9pm to 10pm on Saturday to come forward.
They also want to hear from anyone who saw a black 4x4 in the area around that time.
Inspector Andy Mather added: "Anyone who may have dashcam footage from the time is asked to review this and pass on anything which may be of note."
John's devastated wife Ann posted on social media he had crashed after suffering a heart attack.
Hi distraught relatives said: "The family are devastated by the sudden death of John.
"We would like to thank everyone for their thoughts and condolences.
"We would ask for privacy at this sad time."
Any information can be passed to police by calling 101, quoting incident 3941 of 12 September or by contacting Crimestoppers on 0800 555 111.
