A 33-year-old jockey was thrown from his horse and killed in the final race of the day yesterday at the Alameda County Fair.
The jockey, Jorge Herrera, was racing in the final race of the day when he fell from the thoroughbred "Morita" at about 5:15 p.m., according to a spokeswoman for the Fair.
Morita or another horse was believed to have stepped on Herrera's head, causing severe head trauma.
Racetrack paramedics treated Herrera at the scene before transporting him to Eden Medical Center, where he was pronounced dead.
"We are in shock and sorrow," fair organizers said in a statement. "Our heartfelt sentiments go out to his family."
Condolences can be left on the fair's Facebook and Twitter accounts, organizers said.