A traffic accident closed the Parks Highway in Healy for about seven hours after a multiple-vehicle crash Friday night.

Just after 10:30 p.m., Fairbanks Alaska State Troopers received reports of the crash near Mile 252.

Investigation revealed a semi-truck pulling double trailers was traveling northbound near mile 252.5 of the Parks Highway, according to an online AST dispatch. The semi-truck driver, 52-year-old Eric Kennedy, tried stopping for a vehicle that was disabled and was blocking the northbound lane of the highway.

“Kennedy was able to stop the semi before striking the other vehicle,” troopers wrote. However, “the semi and trailers became jackknifed, blocking all lanes of travel.”

Another northbound driver who “could not stop due to the black ice on the road,” struck the semi-trailer, causing his car to become wedged between the trailer and southbound guardrail. The driver, 22-year-old Stevie Lander, and passengers — 28-year-old Cadman Peterson, 21-year-old Moriah Walker and 17-year-old Phillip Payton — were able to safely get out of the vehicle.

Shortly afterward, another driver — 83-year-old Lonnie Parrish — who also could not stop, struck the semi-trailer as well. The vehicle’s passenger — 69-year-old Sandra Parrish, of Anchorage — had to be extricated from the vehicle by emergency responders.

Five patients were transported to the hospital. All patients’ injuries were “reported to be serious, but not life-threatening,” troopers say.