A motorcyclist is dead after a major accident on Highway 146 in Pasadena.

According to police, a driver heading south on the highway slammed into the back of the motorcycle around 8:45 p.m. Saturday.

The force of the crash threw the rider off the motorcycle, police said, killing him instantly.

As of Sunday morning, the victim's identity has not been released.

Police have not said whether the driver will face any charges.

The accident forced the highway to close in both directions for hours, but all lanes have since reopened.