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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.

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.

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.

State police were investigating the cause of the crash.