Update, 5 p.m.: Marsac Ave. opened late Friday afternoon after being closed in both directions for a few hours.
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The 28-year-old man driving the truck sustained minor injuries, according to Park City Police spokesperson Jay Randall. The driver and passenger were both transported to the hospital in stable condition.
The cause of the crash has not been determined.
Police have blocked off access to Marsac Avenue at the Deer Valley Drive roundabout. Northbound traffic is being diverted to Royal Street.
