A head-on collision between two cars on Route 9 in Leicester Sunday evening left one person dead and another with non-life threatening injuries, according to the Leicester Police Department.

The crash happened near the intersection of Route 9 and King Court, police said in a statement, and killed one driver. The person’s identity is being withheld pending next-of-kin notification, police said.

The other driver is being treated at a local hospital for his injuries, police said.

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Route 9 saw significant traffic delays Sunday night due to the accident, police said.

Authorities with the Central Massachusetts Law Enforcement Council and the Worcester County District Attorney’s office are investigating the crash.