A person was killed and a second was seriously injured after their car crashed on Route 3 in Duxbury Saturday night, police said.

Massachusetts State Police troopers responded to reports of a single-car crash on Route 3 Northbound in Duxbury, near Exit 22, around 11 p.m. Saturday.

One person was killed and another was taken to a hospital with injuries not believed to be life-threatening, State Police said.

It wasn’t immediately clear what led up to the crash. Police did not identify the person killed.

The crash remains under investigation.

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