In a freak accident, a man was killed when a tire flew off a truck and caused the driver of the Smart Car to lose control Sunday.
The Covina Boulevard offramp on the 57 Freeway was shut down for two hours in San Dimas after the crash.
The California Highway Patrol said southbound lanes were also shut down after the fatal wreck.
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Officials on scene told NBC4 that a truck was traveling on the 57 Freeway just south of the 210 Freeway when the truck lost a tire. The tire collided with a Smart Car, and the driver lost control.
The driver of the Smart Car died as a result of injuries sustained in the crash.
CHP said the Smart Car was the only vehicle involved in the crash after the tire came loose.
Editor's note: This article has been updated for clarification.