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 palpatations.

The final arguments in prominent Hong Kong activist Jimmy Lai’s national security trial were postponed Friday after his lawyer said the former pro-democracy newspaper founder had experienced heart palpitations and the judges wanted him to receive medical treatment first.

The closing submissions in a national security trial against Hong Kong pro-democracy businessman Jimmy Lai were delayed on Friday after his lawyer said he had suffered heart palpitations.