Photos: Terrorist Attack On Airport In Belgium Capital Leaves Many Injured, All Flights Cancelled

At least two explosions rocked the check-in zone of Brussels Airport Tuesday, killing and wounding "several" people, an official said.

The blasts shook the departures hall shortly after 8 a.m. local time (3 a.m. ET).

Pictures from the scene showed bloodied victims, shattered glass and debris as well smoke pouring from the terminal and passengers fleeing the airport area with their bags.

"There was an explosion … there are several dead and wounded but we can't say how many at this point," a federal police spokesman said.

A security source told NBC News the explosion happened near check-in desk four in Departure Hall 1, which is used by international carriers including American Airlines.