This story has been updated.
A fatal rollover crash occurred about 11:15 a.m.Thursday on southbound I-684 in Harrison.
State police said the car's driver was killed. Police were in the process of notifying the driver's family, so had not released his/her name.
Trooper Melissa McMorris said there were no passengers in the car.
"The driver exited the roadway for an unknown reason," McMorris said.
Emergency responders from multiple neighboring municipalities, including EMS units, responded to the accident scene, according to state police.
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