A Dallas Mounted Officer was patrolling in the Big Tex circle when the horse became startled, the State Fair said.

Altman is "wanted for the involvement in the killing or serious injury of a law enforcement officer," according to the Texas Department of Safety.Start the day smarter. Get all the news you need in your inbox each morning.

A 17-year-old boy was injured when he was struck by a frightened Dallas police horse that also threw its rider, officials said.

A fairgoer at the State Fair of Texas had to be taken to the hospital after a police horse was startled near Big Tex.

A Dallas police officer was bucked from his horse at the State Fair of Texas on Tuesday afternoon, injuring one patron in the process. About 3 p.m., an officer with the mounted unit was patrolling in Big Tex Circle when his horse was startled,

The Dallas Police Department said in a statement that a Dallas officer was riding a horse patrolling the State Fair. He was at the Big Tex Circle when his horse was startled. The officer was injured trying to calm the horse and was bucked off.