GRAND PRAIRIE -- Three of five eastbound lanes of Interstate 20 have reopened near Great Southwest Parkway after a teenager was hit while crossing the road.

Police say four teens were running across I-20 at about 4:30 a.m. Friday when one stopped to retrieve his flip flop after it fell off. He was then hit by an SUV, which threw him into another lane of traffic. A semi truck then rolled over him.

<p>Grand Prairie crash</p>

Both drivers stopped and will not be charged. The three teens who were with the victim ran off, and police are looking for them so they can find out why they were crossing the interstate.

The teen who was hit has not been identified.

The incident closed I-20 at Great Southwest Parkway before rush hour Friday morning, causing backups for hours. Two lanes are still shut down, so delays are ongoing.