The female driver who allegedly collided with a car carrying Dwayne Johnson's mother and cousin was involved in a police chase at the time of the crash.

The Hercules star's relatives were travelling home from a charity event in Florida earlier this month (Aug14) when they were involved in a head-on collision.

The driver of the other car was allegedly drunk and, according to Tmz.com, she also ran a red light after a police officer attempted a traffic stop. The officer gave chase, and minutes later the woman collided with Johnson's family's car.

The actor's relatives were hospitalised, and the driver was treated for facial injuries. Police have not yet announced if she will be charged over the crash.