Three people were injured at an outdoor sports complex in Oregon when a monster truck struck a barrier and plowed into the crowd during a Labor Day Weekend show.

The injured, whose names and conditions had not been released today, were taken to the hospital in Eugene, Ore., for treatment. Deputies with the Linn County Sheriff's Office said the victims' injuries were not life threatening.

Dan Mills, owner of the Harrisburg MotorSports Complex in Harrisburg, where the accident occurred, said he believes the truck's hydraulic steering went out during a race, causing the driver to lose control of his vehicle.

"It went to the right and there wasn't anything he could do to stop it," Mills told The Associated Press. "This was my worst fear - what happened. ... It was the freakiest thing I've ever seen."

More than 1,000 spectators were on hand to see "Monster Air 2012? on Saturday.