HONG KONG -- The Hong Kong police on Thursday morning arrested five directors of a company for suspected contravention of the national security law in Hong Kong.

Local media reported that the suspects were executives of Next Digital Ltd and Apple Daily, including Cheung Kim-hung and Chow Tat-kuen.

The police said the four men and one woman aged between 47 and 63 were suspected of conspiracy to commit collusion with a foreign country or with external elements to endanger national security. They remained under custody.