PSNI detectives investigating the murder of Natasha Carruthers in a car crash in Co Fermanagh last weekend have arrested a fourth person.
A 32-year-old woman was arrested on suspicion of withholding information and perverting the course of justice.
Natasha Carruthers, who was in her 20s, was killed in a crash between Lisnaskea and Derrylin last Saturday night.
Earlier this week the PSNI upgraded the investigation to a murder probe.
Detective Chief Inspector Eamonn Corrigan of the PSNI said: "A week has now passed since the tragic incident which cost Natasha her life.
"We continue to focus our efforts to find out exactly what happened and who is responsible for Natasha's death. Our investigation is moving forward at pace but I would still appeal to anyone with any information to contact police."
Two men aged 20 and 40, and a 20-year-old woman were also arrested in connection with the incident.
All three were released on bail.
