Dallas police say a mounted police officer was patrolling Big Tex Circle when the horse was startled, bucking off the officer. The teen's mom says he had a seizure for the first time in his life after being knocked to the ground by the horse and lost consciousness.

A startled Dallas police horse injured a teenager at the State Fair of Texas this week and the teen’s mother wants answers.

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

A Dallas mounted officer was bucked off a spooked horse at Fair Park, injuring another person nearby. Engadget

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.