Two teenage girls and a man in his 20s have been killed after the car they were in hit a tree in Kingswinford.
They were among five people in a yellow Skoda Fabia which crashed on Bromley Lane, at around 8.50pm yesterday.
Those killed were pronounced dead at the scene, near the junction with Standhills Road.
The other two victims, a teenage boy and a teenage girl, are in a critical condition in hospital.
The families of all of those involved have been informed. The road was closed overnight, but has now re-opened.
There was a police car in the vicinity of the collision, but at this stage it is not known if there was any interaction with the Skoda. This will form part of our investigation.
Sgt Dean Caswell, who is leading the investigation, said: “This is a tragic time for the families of those involved, and we have specially trained officers who will be supporting them through the difficult time ahead.
“The investigation is at a really early stage, and we’re trying to establish exactly what happened and why.
“I’d urge anyone who saw the Skoda driving in the area last night, or who may have captured anything on dash-cam footage, to get in touch with us as soon as possible.”