SAN FRANCISCO (AP) — Two drivers were arrested on suspicion of DUI after a motorcyclist went flying off a San Francisco freeway overpass and landed on top of a moving car below before being run over by another vehicle early Tuesday, authorities said.

The unidentified motorcyclist died at the scene, the California Highway Patrol said in a statement describing the extraordinary series of events that occurred at the Interstate 80/U.S. 101 interchange around 3:30 a.m.

The motorcyclist swerved to avoid a disabled Nissan sedan on an elevated ramp connecting one freeway to another, the highway patrol said.

The rider struck a concrete wall, was thrown off the motorcycle and plummeted 50 feet (15 meters) down onto the roof of a Honda sedan traveling in lanes below, the statement said.

“The motorcyclist is believed to have been struck by at least one and possibly more vehicles after landing on the roadway surface,” the highway patrol said.

The Honda slowed to a stop and was rear-ended by a Subaru Forester.

The drivers of the Nissan and Subaru each could face charges including driving under the influence, according to the statement.

The driver of the Honda was not arrested and sustained minor injuries, officials said.

Any witnesses should contact the highway patrol office in San Francisco.

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