Bensalem , Pennsylvania ( CNN ) -- About 100 vehicles were involved in a series of wrecks on the eastbound Pennsylvania Turnpike just north of Philadelphia on Friday morning , injuring at least 30 people and causing a traffic backup for hours over parts of two counties , officials said . Glare from the rising sun and ice -- left over from a storm that dropped snow and freezing rain in the Philadelphia area -- might have been factors , state police Trooper Adam Reed said . The wrecks started around 8:25 a.m . ET with a 14- or 15-vehicle collision in southern Bucks County , not far from New Jersey state line , said Bill Capone , spokesman for the Pennsylvania Turnpike Commission . About 20 more sets of wrecks stretching for miles occurred on the turnpike , said Pat Ponticelli , Bensalem Township 's deputy director of public safety . Each apparently happeed as traffic slowed for crashes ahead . In a number of areas , smashed vehicles were piled into each other with their front ends pointing in different directions , aerial video from CNN affiliate WPVI showed . In one spot , at least nine vehicles appeared to be crunched in a jumbled group behind a tractor-trailer . In another , a couple of vehicles had come to rest against a jackknifed truck . Thirty people were hurt , including five with serious , but non-life-threatening injuries , Reed said . More than half of those injured were taken to Abington Memorial Hospital , where they were diagnosed with minor to moderate injuries , Dr. John J. Kelly , the chief of staff , said . `` I think we really saw mostly what we would call soft-tissue injuries , bumps and scrapes type of injuries , '' he said . Traffic was moving again in one affected section of the turnpike by 2 p.m. , video from CNN affiliate KYW showed . Pennsylvania State Police said it hoped to have the road fully open by 5 p.m. Heather Pasco , a driver involved in one of the crashes , told KYW that she thought she was a goner . Pasco said she had stopped her car after she saw `` cars bouncing off of the center divider . '' Although she stopped , a truck behind her did n't , she said . `` I looked in my rearview mirror , and there was a big ... truck right behind me , and he was trying to stop , but he was sliding and he slammed right into the back of me , which then made me slam into the car in front of me , '' she told KYW . `` I saw him ( in the mirror ) , and I thought I was done , '' Pasco added . `` The entire back end of my car is gone . '' Police told her that her wreck was about 3.5 miles behind the initial crash , she said . She said the road , after snow and freezing rain had fallen in the area , was n't `` really plowed very well . '' Traffic was backed up for miles , stretching west into adjacent Montgomery County . CNN 's John Newsome , Lena Jakobsson and John Fricke contributed to this report .
NEW : A number of the victims suffered soft-tissue injuries , a doctor says . Crash victim says truck sandwiched her car into another vehicle ; ' I thought I was done ' At least 30 people are taken to hospitals , turnpike commission says . About 100 vehicles crash on Pennsylvania Turnpike north of Philadelphia , official says .