A FedEx worker was found dead in the bitter cold outside an Illinois delivery hub.

The 69-year-old victim’s body was discovered by another employee about 9:30 a.m. Thursday morning between two semi-trailers outside the East Moline freight facility, reported WQAD-TV.

The Rock Island County coroner said the cause of death is not yet known, but an autopsy is scheduled for Monday, and foul play was not expected.

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Temperatures across the Midwest dropped well below zero, with wind chills as low as minus-70 degrees Fahrenheit.

Investigators said the cold likely played a role in the FedEx worker’s death.