18 shoppers were injured when a 150-foot escalator malfunctioned at the Langham Place shopping mall in Hong Kong. In the middle of a busy shopping day, the device suddenly started moving backwards at twice its normal rate, piling up shocked riders at the base. Stomach-churning video of the incident was caught on security cameras, and has gone viral on social media.
Here's another angle:
Investigators believe that simultaneous failures of a damaged driving chain and a braking device allowed the accident to occur. Amazingly, the escalator had just passed a biannual safety inspection last week, on March 23. Evidently, that inspection was not very thorough.
Two technicians have been arrested in connection with the incident, and charged with obstruction of justice. Even if they're found not guilty, chances are they're going to be out of a job.