A Malaysia Airlines Boeing 777 disappeared from air traffic control screens over waters between Malaysia and Vietnam early Saturday morning, leaving the fates of the 239 people aboard in doubt.

A look at some of the world’s deadliest air disasters:

1. June 3, 2012: Dana Air MD-83 jet crashes into residential area of Nigeria’s largest city, Lagos, killing all 153 people aboard.

2. April 20, 2012: Bhoja Air Boeing 737 crashes in wheat fields near Islamabad, Pakistan, while trying to land during thunder storm, killing 127 people.

3. Jan 9, 2011: Iran Air Boeing 727 breaks to pieces on impact in northwestern Iran. 77 dead.

4. May 12, 2010: Afriqiyah Airways plane en route to Tripoli, Libya, from Johannesburg, South Africa, crashes into the desert less than a mile from the runway, killing 103 people.

5. April 10, 2010: The plane of Polish President Lech Kaczynski crashes outside the western Russian city of Smolensk, killing all 96 aboard.

6. June 30, 2009: Yemenia Airbus 310 en route to the Comoros Islands crashes into the Indian Ocean with 153 people on board.

7. June 1, 2009: Air France Airbus A330 runs into thunderstorms and crashes into Atlantic Ocean en route from Rio de Janeiro to Paris, killing 228 people on board.

8. May 25, 2002: China Airlines Boeing 747 breaks apart midair and crashes into the Taiwan Strait. 225 dead.

9. Nov. 12, 2001: American Airlines Airbus A300 crashes after takeoff from JFK Airport into the New York City borough of Queens. 265 dead, including people on the ground.

(Source: World Almanac, Associated Press)