Benazir Bhutto International Airport on high alert . Intelligence reports indicated it was under threat of an attack . Officers combed through the airport compound looking for explosives . Danish Police says one of its employees was killed in Marriott hotel bombing .
Benazir Bhutto International Airport on high alert . Intelligence reports indicated airport was under threat of an attack . Officers combed through the airport compound looking for explosives . Danish intelligence says one of its employees was killed in Marriott hotel attack .