UPDATE: One person, the driver of the vehicle, was taken to Ruby Memorial Hospital with more severe injuries than initially known at the time of the last update.
UPDATE: Mon Boulevard has reopened.
UPDATE: 3 people have been taken to Ruby Memorial Hospital for minor injuries following the PRT striking the boulder.
NOTICE: Mon Boulevard between 8th Street and Patteson Drive is closed due to a rock slide. The portion of the roadway will be closed until the hillside can be stabilized by the DOH. Traffic is being detoured up 8th Street onto University Avenue. Expect delays for several hours at least.