The two men who died in the one-vehicle collision – on the Victoria Road between Newbuildings in Co Londonderry and Magheramason, Co Tyrone around 3am on Wednesday – were from Donemana.
It’s believed they were back seat passengers in a black Volkswagen Golf which was travelling in the direction of Londonderry. They have been named locally as Michael McDonald, 21, and Aaron McDonald who was 19.
The 18-year-old male driver and 16-year-old female passenger sustained non-life threatening injuries in the incident and were yesterday in a stable condition in hospital.
Last night police said the 18-year-old man being questioned had been released on bail pending inquiries.
Reverend Judi McGaffin of Fahan Church of Ireland said the families of the two men were struggling to cope with the tragedy.
She said: “Both grieving families are struggling to come to terms with what has happened and they wish to mourn in private. News of their tragic and untimely deaths has left a deep sense of shock in the village and beyond.
“The loss is felt most acutely by the men’s families but it will be shared by their many young friends. The bereaved, the injured and all those affected by this tragedy, are in our prayers at this most difficult time.”
Rev McGaffin added: “The circumstances of this morning’s crash are still unclear. The police have begun an investigation and I would urge anyone who can help that investigation to do so.”
The road was sealed off for much of the day yesterday as police officers and specialist accident investigators tried to established how the accident occurred.
Police have appealed for anyone who was travelling on the road between 3am and 3.30am and saw a black Volkswagen Golf travelling from Strabane to Londonderry to contact them.