Hollywood director Michael Bay has been attacked and injured on the set of the fourth installment of the "Transformers" movie series currently filming in Hong Kong.
A Hong Kong police spokeswoman said two brothers surnamed Mak who own a shop near the film set approached Bay and demanded 100,000 Hong Kong dollars ($13,000).
When Bay refused to pay, they assaulted him. The brothers also assaulted three police officers who were called to the set.
The spokeswoman said Bay suffered a minor injury to his face but declined medical treatment. She spoke on customary condition of anonymity.
The two men were arrested and face charges of blackmail and assault.
"Transformers 4: Age of Extinction" is partly set in Hong Kong. It stars Mark Wahlberg and is to be released next June.