UPDATE: The crash was cleared by 1 p.m.
At least eight vehicles and a tractor-trailer crashed on I-76 just outside Philadelphia late Monday morning.
Police responded to the serious crash along the highway in Lower Merion, in the area of Mill Creek Road, which is between the exits for Gladwyne and Conshohoken.
The crash, in which a pickup truck was flipped onto its side, blocked all of the westbound lanes and one of the eastbound lanes, and traffic backed up behind it.
Police and paramedics are at the scene.
SkyForce10 video from the scene showed several cars crashed and badly damaged along the highway.
Some victims of the crash were taken to local hospitals, but police had not reported any serious injuries about 1 p.m. The westbound lanes were reopened by about 1.