Baltimore police say Olympic gold medal swimmer Michael Phelps has been in a two-car collision but not injured.

Police spokesman Anthony Guglielmi says Phelps was driving a late-model Cadillac Escalade on Thursday night when it and a Honda Accord collided.

Guglielmi says the female driver of the Accord was "shaken up" and taken to a local hospital as a precaution.

Guglielmi says the accident is under investigation.

Phelps won eight gold medals at the Beijing Olympics.

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