Photos: Happening Now: Ninja roller coaster in Magic Mountain CA derails

Ninja roller coaster derails at Six Flags Magic Mountain in California. Fire dept attempting rescue...

Firefighters were trying to reach four people who were hurt on a ride at Six Flags Magic Mountain in Valencia officials said.

The riders, along with 21 others, were stranded on the Ninja ride about 30 feet above the ground, the Los Angeles County Fire Department said. Crews were using heavy equipment to extract the passengers.

Firefighters were called to the amusement park just before 6 p.m.

Early reports said two of the riders were seriously injured, but fire officials have not confirmed that information.

According to the Six Flags website, Ninja takes riders on a winding track at speeds of 55 mph. Riders hang from the track and are swung 90 degrees each way.

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