"We inspected the monorail this morning, conducted the necessary safety checks as we typically do every day and everything was working properly," said Disney spokeswoman Suzi Brown. "We made the decision to continue to operate the Disneyland Resort monorail today."

The monorail trains that collided at Walt Disney World at 2 a.m. EDT were on a track in the Magic Kingdom section of the Florida resort. One train operator, identified as Austin Wuennenberg, 21, was killed. It is unclear what caused the crash, authorities in Florida said.

"The safety of our guests and our cast is our top priority," Brown said. "We are mourning the loss of our Disney World cast member and our hearts go out to the family"

The monorail at Anaheim's Disneyland Resort began operating in 1959. It runs on a 2.5 mile loop and makes stops in Tommorrowland and Downtown Disney.