HAGERSTOWN, Md. -- Maryland State Police are investigating a series of collisions that involved more than 20 vehicles on I-81 South.
Police say a chain reaction collision occurred on I-81 South at Salem Ave. (Route 58) around 11:30 a.m. As vehicles slid off the icy roadway, a tractor trailer drove into the median to avoid the vehicles spun out in the road.
A second tractor trailer struck the first in the side, splitting the trailer and dumping its contents on the road.
That collision caused several other tractor trailers to run off the road and jack knife in the road way, police said. Troopers arrived to find 12-15 separate incidents involving 20-plus vehicles.
I-81 North and South were closed for approximately 3 hours due to the road being blocked. I-81 North was opened up shortly after 3 p.m. and I-81 South opened after 4 pm.
Several vehicles that spun out off the roadway or median will be left unattended until they can be safely removed at a later time.
State Police strongly recommend that motorists please stay off the roads to allow State Highway time to properly treat and plow.