Girl, 5, dies after father tosses her off bridge

A 5-year-old Florida girl was killed after her father tossed her off a bridge from his car, police said Thursday.

As a St. Petersburg police officer was driving home just after midnight, he saw a car whiz past him, driving about 100 miles per hour, authorities said.

When the car neared the top of the Dick Misener Bridge, the driver stopped and threw a child over the rail and into the water.

The father was later arrested. And a search began to find the girl.

The body of the girl was later recovered.

Police were questioning the father and have not disclosed his motive. The identities of both the father and the child have not been released.

CNN's Rick Martin contributed to this report.