Gunmen disguised as airport security workers attack Karachi 's airport . Police said one gunman detonated a suicide vest after being cornered in one of the hangars that contained fuel . Fuel blazes and heavy machine - gun fire add to confusion at scene . Six people are killed in the attack ; another 20 are injured , witnesses say .
Gunmen disguised as airport security workers attack Karachi 's airport . Fuel blazes and heavy machine - gun fire add to confusion at scene . Six people are killed in the attack ; another 20 are injured , witnesses say .