A man died after the car he was driving crashed on Massachusetts Route 9 in Brookline near the Brookline Reservoir Sunday, police said.
Four other people were hurt in the pile-up, including the deceased driver's wife, who remained hospitalized Monday, Brookline police said.
The crash took place about 2:40 p.m., when one vehicle hit two others, then drove off the road and into a tree, police said. The two people inside were trapped — when firefighters freed them, they were rushed to Beth Israel Deaconess Medical Center.
The driver, a 50-year-old man who has not yet been identified, was later pronounced dead, police said. His wife was in stable condition as of Sunday night and is expected to survive.
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The three people hurt in the other two vehicles involved in the crash had minor injuries, police said.
Investigators believe the driver who later died had a medical episode that led to the crash, but the circumstances around what happened remained under investigation Monday.
