As many as 100 SUV's, cars, and tractor-trailers involved in huge collision on the snowy Pennsylvania Turnpike in Bucks County.

A massive traffic pileup shut down part of the Pennsylvania Turnpike on Friday morning, as an estimated 50 to 100 vehicles crashed, flipped or spun out amid the slushy roadway — another impact of Thursday’s monster storm.

The main wreck occurred around 8:20 a.m. on a 3- to 4-mile stretch of the eastbound lanes in Bucks County, north of Philadelphia. A snow-related speed restriction forcing cars to go no more than 45 miles per hour had just been lifted at 6 a.m.

Among the vehicles that spun out or rolled over are SUVs, two big rigs and a jackknifed tractor-trailer. An helicopter captured the aftermath.

Emergency crews rushed to the scene to rescue drivers. There were at least three injuries, although none appeared to be life-threatening, according to the Pennsylvania Turnpike Authority.

The chain-reaction crash appears to be the result of a rampant winter storm that dumped a second batch of snow along the East Coast and promised a rough commute for millions Friday morning.

The storm pummeled states from Virginia to Vermont on Thursday, dumping as much as 28 inches of snow, canceling thousands of flights, and causing at least 21 deaths. Utility firms reported that about 424,000 customers still had no electricity early Friday morning.