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JEFFERSON TOWNSHIP, Pa. (KDKA) — A fatal crash late Tuesday night shut down a nearly 100-mile stretch of the Pennsylvania Turnpike.

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The crash happened around 11 p.m. in the eastbound lanes in Jefferson Township, Somerset County. A turnpike spokesman said it involved a tractor-trailer and two other vehicles.

At least one person has died, but their identity has not been released.

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The eastbound lanes of the turnpike were closed between New Stanton (Exit 75) and Breezewood (Exit 161).

A turnpike official could not offer an estimate on how long it would be until the lanes would reopen.

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State police were investigating the cause of the crash.