Nearly two dozen visitors to a California Six Flags are back on the ground after dangling up to 30 feet in the air for hours yesterday. 

A roller coaster ride at Six Flags Magic Mountain amusement park in Santa Clarita hit a tree branch, dislodging the front car. 

Four people were slightly injured. It took nearly three hours for the LA County Fire Department to rescue all 22 riders from the Ninja coaster.   

Six Flags continues to investigate the incident. 

-- The Associated Press