Four Highlands school district students on their way to school Friday were injured when the small car they were in snapped a tree along Burtner Road, police said.
Passenger Gina Naviglia, no age available, was flown to Allegheny General Hospital, Pittsburgh.
Officials said she is an eighth-grader at Highlands Middle School.
Driver Ed Petrosky, no age available, his sister, Alexis, and Angie Naviglia were taken to the same hospital by ambulance. The Naviglias are sisters.
A hospital spokeswoman said the Petrosky siblings were in fair condition Friday morning, but later in the day a hospital representative said neither the Petroskys nor the Naviglias were listed as patients.
A school official said the four are neighbors along Ridge Road.
Police said the four, who may range in age from 13 to 17, were wearing their seat belts.
Police Chief Tim Christy said speed may have been a factor in the 7:29 a.m. wreck that demolished the Hyundai there were riding. An investigation is continuing, police said.
Police said the car was severely mangled and wrapped around part of the tree. All three girls were trapped inside the car for a time.
"This is one of the most violent crashes that I've seen," said Christy agreeing with others who were amazed that the four survived the crash.
Harrison Dispatch said the wreck happened about a quarter-mile from the Route 28 expressway.
According to skid marks and witnesses, the car skidded nearly 100 yards before going off of the road and then coming back on.
When the car reentered the road, it was apparently leaning on one side as it skidded about another 70 yards and then went airborne.
The car snapped a large tree in half, according to a witness who said the driver was outside the car when other drivers and police rushed to help.
"I don't know how he got out," Christy said.
The others had to be freed from the wreckage.
Highlands school officials contacted each of the school buildings and put on standby teams of counselors.
"If any of the students need to sit down and talk, our assistance teams will be ready," said district spokesman Ang Bruni.
Eureka Fire and Rescue, Fawn Nos. 1 and 2, Hilltop Hose and Citizens Ambulance responded.
