Little girl dies after being thrown off Florida bridge by her mother

TAMPA, Florida -- A woman is in custody after police say she killed her daughter by throwing her off a bridge.

Bystanders watched in horror Thursday afternoon as the girl was tossed into the water, WFTS-TV reports.

Witnesses told police a woman carried the girl to the edge before throwing her off.

A police dive team was called to the scene. Officers found the girl and loaded her into an ambulance, but it was already too late.

The girl was estimated to be about 4 years old.

We do not have details on what led up to the incident.