On Oct. 15, a military helicopter crashed due to a technical failure near the Anad air base in the southern province of Lahj and the pilot died later from serious injuries.

On Oct. 25, 2011, another Russian-made Antonov military cargo plane crashed while landing at the Anad military air base, killing nine people, including eight Syrian engineers and a Yemeni army officer.

The Anad military air base is used by the U.S. army to train Yemeni counter-terrorism forces in combating al-Qaida militants in the country‘s restive south.