CALIFORNIA (KDKA) – Police are investigating after at least one person was killed in a Washington County crash Monday morning.

According to Turnpike officials, the accident happened on the Mon-Fayette Expressway near the California Interchange.

The crash involved a tractor-trailer, a box truck and a car. Two other people were flown to the hospital, but their conditions are unknown.

The coroner has been called to the scene.

Meanwhile, a six-mile section of the expressway is closed due to the crash.

The suggested detour for northbound traffic is:

  •  Exit at M-30
  •  Take Route Interstate 40 east to State Route 88 north
  •  Take Interstate 70 west
  •  Reenter Mon Fayette Expressway northbound at M-36

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