The 49 year old man who died following a fatal road traffic collision in Omagh has been named locally as Paul Mills from Omagh.
Investigations are continuing today following the head-on collision on the Dromore Road in Omagh.
The male driver of the Yaris was taken to hospital but died from his injuries.
The incident involved a Toyota Yaris and a Saab Vector and was first reported on Saturday night at 10pm.
The 40-year-old female driver of the other vehicle was also taken to hospital for treatment to non-life threatening injuries.
The woman was arrested but has since been released on police bail.
Police say they have spoken to a number of witnesses however they do know that other motorists who have not yet come forward were travelling on the road last night and they may have information that could assist in the investigation.
They would also like to speak to anyone who may have witnessed an earlier collision between the Saab and a white Peugeot 207. The number to call is 101.