Detective Inspector Michael Winters said: “I would like to thank all those who have responded to my appeal for information following this tragic incident.
“Working with our colleagues in An Garda Síochána we have now recovered a black BMW X5 which we believe was involved in the collision.
“The vehicle was located at an address in Cou Donegal on Monday evening.
“It has now been recovered to a PSNI establishment for a forensic examination to be carried out.
“We are subsequently following a definite line of enquiry in relation to the collision and hope to progress our investigation in the near future.
“I would however continue to ask anyone who has not yet spoken with police, but who witnessed the collision or has dash-cam footage of the collision, to contact detectives in Omagh on 101 quoting reference number 958 31/05/20.”