From the picture matched by the poster Dark Art of War who instigated the riot to continue to go to the airport, the person who took this picture was suspected to be the captain of Cathay Pacific CX216.
The flight departed from Manchester at 12:29 p.m. local time on the 12th and arrived at Hong Kong Airport at more than 7 a.m. on the 13th.
But about an hour before the flight took off, the suspected captain of Cathay Pacific CX216 took a notice on the screen in the cockpit.
From the enlarged picture below, you can see that this notice was sent to Cathay Pacific Flight CX0216 at 10:41 a.m. local time, Manchester, UK, on 12th (5:41 p.m. Hong Kong Time, 12th), to the effect that the announcement was assessed and the plane was ready to take off.
This, in the view of Dark Art of War posted by Lianden Forum, means that Hong Kong Airport, which was previously suspended due to harassment by rioters, has resumed flight. Then the rioters can go back to the airport to make trouble and harass passengers.
Source: Civil Aviation Resource Network Responsible Editor: Lin Chiheng_NY9285