A sudden burst of screams erupted in the lobby on the first floor, as travelers were frightened and fled in all directions.
Upstairs, a few masked men holding heavy guns laughed as they fired shots downstairs.
Bullets hit the floor, and some travelers who couldn't dodge in time were hit directly by stray bullets, collapsing to the ground.
At the same time, all the exits had automatically shut down and locked.
"Damn it, those bastards must have already taken over the Control Center." A security personnel guarding in front of Ivana Bennett cursed under his breath.
The large screen displaying the flight system flickered, revealing the silhouette of a man in a suit, wearing a mask covering his face.
Beside him was the background of the Control Center, where several staff were held at gunpoint, and one who had obviously resisted lay dead in a chair.