A man, in his 20s, died as the car he was a passenger in crashed into a lamp-post, police said.
The collision took place on Penncricket Lane in Rowley Regis, West Midlands, at about 05:30 BST.
A man, also in his 20s, was arrested on suspicion of causing death by dangerous driving.
A third man was taken to hospital with a broken arm, along with a fourth man who had minor injuries, West Midlands Police said.
The force said the road would remain closed for most of Saturday while investigations continue.
The collision took place on Penncricket Lane in Rowley Regis, West Midlands, at about 05:30 BST.
A man, also in his 20s, was arrested on suspicion of causing death by dangerous driving.
A third man was taken to hospital with a broken arm, along with a fourth man who had minor injuries, West Midlands Police said.
The force said the road would remain closed for most of Saturday while investigations continue.
Arrest after passenger's death in lamp-post crash - BBC News
Two other men needed hospital treatment after the collision on Penncricket Lane, police say.
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