The final arguments in prominent Hong Kong activist Jimmy Lai’s national security trial have been postponed after his lawyer said he experienced heart palpitations and the judges wanted him to receive medical treatment first.

A court in Hong Kong adjourned a national security trial hearing of media mogul Jimmy Lai on Friday, due to concerns about his health, after his defense said he had been experiencing heart palpitations.

The trial of Jimmy Lai, Hong Kong media mogul, are postponed for a few days due to issues with the 77-year-old's heart. Closing arguments are set for Monday.