The crash happened just before 3 a.m. near the Garfield Avenue exit. Authorities said a driver was killed when he crashed his car into the back of a big rig and then was hit from behind by another big rig.
The car ended up sandwiched between the two trucks, officials said. The victim, only identified as a man in his 30s, was declared dead at the scene.
All westbound lanes were closed and traffic was diverted onto Pomona Boulevard following the crash. The lanes reopened around 6:15 a.m.