Five children and two adults suffered minor injuries at the Alameda County Fair in Pleasanton on Thursday afternoon when the "Wacky Worm" kids' roller coaster ride malfunctioned, a fair spokeswoman said.
A connector link on a chain appears to have pulled apart, causing the chain to dangle in front of the ride and hit the passengers at about 3 p.m., fair spokeswoman April Mitchell said.
The seven passengers suffered minor injuries, but one adult and one child were transported to the ValleyCare hospital as a precautionary measure, Alameda County Fire Department spokeswoman Aisha Knowles said.
The remaining five were treated at the scene, she said.
Mitchell said the ride was shut down for inspection after the incident, and the California Division of Occupational Safety and Health
cleared the ride for repair Thursday evening.
The part needed to repair the ride is expected to arrive Friday, and once it's fixed, the department will inspect the ride again before allowing it to reopen.
An independent ride inspector called Coulter & Associates is also reviewing the incident, Mitchell said.
Although a ride that injured a worker at the Sonoma-Marin Fair in Petaluma last week was also called the Wacky Worm, Mitchell said the ride that malfunctioned Thursday is not the same one.
The Alameda County Fair's ride is owned and operated by Butler Amusements, Mitchell said. The Somona-Marin Fair uses Brass Ring Amusements' Midway of Fun.
On June 23, a worker's leg was severed below the knee at the Sonoma-Marin Fair when he tried to cross the Wacky Worm's tracks while the ride was in motion, fair officials said.