Four men were arrested after a 17-year-old girl's body was discovered in a car at Belfast City Hospital.
Tara Wright was found dead in a grey car on the hospital grounds early on Sunday morning.
The PSNI believe that she had been involved in a single vehicle crash on the outskirts of the city.
BBC News reports that a 20-year-old, 21-year-old, 28-year-old, and 30-year-old were arrested in connection with the death. They have since been released on bail and are helping police with their investigation.
Wright's parents have said that they are "devastated" and that their daughter was a "vibrant soul with a zest for life that could bring joy to all around her".
"Tara was a kind, funny, charismatic, bright young girl with her whole life ahead of her and we can't believe that we now have to say goodbye to her," their statement read.
25 minutes before Wright's body was discovered, another car was found upturned on the Ballygowan Road. A man was taken to hospital and remains in a critical but stable condition.
Police believe that the teenager was killed in the collision and are appealing to anybody with information to contact them.
"We are appealing to anyone who witnessed either the silver Mercedes or grey MG to contact us to assist us with our enquiries," they said.
"We also believe that a grey coloured MG vehicle conveyed Tara to the area of Belfast City Hospital therefore we are also appealing to anyone who witnessed this vehicle between the Ballygowan Road and the Hospital to contact police.
"I would also urge anyone who may have dashcam footage of either vehicle taken in the early hours of Sunday morning to contact us."
