Posted
Park officials and witnesses described seeing a large branch fall across the tracks at about 6 p.m. Monday, causing the partial derailment, but a spokesman for the California Division of Occupational Safety and Health, Peter Melton, said an entire tree -- estimated at 40 feet high -- had actually fallen.
Two Six Flags Magic Mountain visitors who were riding the Ninja roller coaster when it struck a downed tree Monday sued the park, seeking unspecified damages.
From the LA Times: Investigation continues, lawsuit filed.