PHOTO: PennDOT cameras spotted a tractor-trailer hanging off the edge of I-83 in Springfield Township late Thursday morning. Traffic cameras showed a mix of vehicles squeezing past the wreck before crews could clear the scene. According to PennDOT, the accident took place on I-83 Southbound between Exit 14 PA-182 Leaders Heights Rd and Exit 8 PA-216. Southbound lanes of I-83 were closed at Exit 10 while the wreck was being cleared. Officials say a gas tank was ruptured, making the incident a hazmat issue. There were no reports of injury. As of 3 p.m. Thursday, the incident has been cleared and all lanes are reopened.