The ride was closed briefly last Friday afternoon after the discovery of the suspicious powder in the water of the popular attraction, the Orange County Register reported Thursday. Security officials said they couldn't determine what the substance was and could not locate the female visitor seen sprinkling the powder.

"A witness described the substance as baby powder that quickly dissipated. We re-opened the attraction after determining that there was no danger to our guests," Disneyland spokesman Rob Doughty said in a statement.

A Disney watchdog blog said the incident isn't the only one of visitors possibly scattering ashes of loved ones on the rides. One blogger said park employees get reports up to once a month when witnesses or security cameras catch people tossing powders.

Disposing of human remains in Disneyland is illegal.