December 17, 2020 | 3:37pm | Updated December 17, 2020 | 4:15pm

Shocking photos show what happened when a dozen tractor-trailers skidded out of control on snow-covered Interstate 80 in Pennsylvania during Wednesday night’s winter storm — killing one person and injuring a number of others.

The 66-vehicle pileup, including 55 trucks and 11 passenger vehicles, over a mile span on the westbound side of the highway happened around 3 p.m. Wednesday in Clinton County, State Police said Thursday.

The stretch remained closed Thursday afternoon with contractors trying to clear the vehicles, according to cops.

A second passenger died during the incident due to a medical issue, but it was not connected to the crash, cops said.

The fatality was one of five lives claimed during Winter Storm Gail, the first snowstorm of the season — which dumped more snow on New York City than all of last year combined.

Another death was reported just outside Pittsburgh when a man was hit by a plow around 4:45 p.m. while walking with a snowblower, according to the local CBS station.

As many as 66 vehicles pile up on Interstate-80 in Pennsylvania.
Pennsylvania State Police

In New York state, there were two deaths reported connected to the storm, according to Gov. Andrew Cuomo, but he did not provide details.

Kansas police also reported a fatal crash on Tuesday in which one person was killed and another two were injured.