CHANNAHON — A U.S. Postal Service driver was killed when his vehicle collided with a truck Thursday afternoon near southwest suburban Channahon.

The accident occurred about 12:35 p.m. on Youngs Road, just south of Cavalea Drive in unincorporated Channahon Township, about seven miles southwest of Joliet, according to the Will County sheriff’s office.

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The driver was heading southbound on Youngs Road when he drove off the roadway onto the shoulder, then went back across the center line, striking a northbound Culligan water truck head-on, sheriff’s spokeswoman Kathy Hoffmeyer said.

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Daniel M. McGuire, 48, of Channahon, was pronounced dead at the scene, the Will County Coroner’s office said. An autopsy is scheduld for tomorrow.

The driver of the water truck, a 32-year-old man, was not hurt, Hoffmeyer said. He was issued a minor citation for a violation not related to the crash.

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The Illinois State Motor Carrier Safety Division was called to the scene to inspect the mail truck, Hoffmeyer said.