Chilling video captures the terror and pandemonium that followed the twin blasts at Brussels’ Zavantem Airport – as dazed passengers scatter across the smoky departure terminal.

“It’s OK! It’s OK!” one person is heard screaming while another sobs.

With an alarm blaring, people can be seen both crouching for cover and dashing to safety.

“I’m not leaving!” someone shouts before a police officer arrives and orders everyone to leave the terminal.