The blaze started on the huge backlot at about 4:45 a.m., fire officials said. At least three firefighters were injured in the blaze, the cause of which was under investigation.

• 消防局说，外景场的这场大火大约是凌晨4：45分开始的。至少有三名消防队员在救火时受伤，火灾原因仍在调查中。