The victim was described a middle-aged man who was in a wheelchair, police said Monday night.
There were 330 passengers aboard the train that hit the person, which was en route to San Bernardino on the Inland Empire-Orange County line, Metrolink spokesman Jeff Lustgarten said.
"We're hoping that one of the two tracks may be released so we can run trains at reduced speed," Lustgarten said, but he had no estimate as to when that might happen. Meanwhile, he said, buses are heading to Laguna Niguel and Santa Ana to transport passengers who would otherwise be stuck. Metrolink is posting service updates on its Twitter account.
Metrolink trains are not the only ones affected by the track closure: A passenger on an
Santa Ana police could not be reached for comment.