US B-1 bombers fly over Korean Peninsula

Updated 7:39 PM EDT, Tue May 2, 2017
A U.S. Air Force B-1B Lancer, deployed to Andersen Air Base, Guam, is flanked by two F-15K Slam Eagles, assigned to Daegu Air Base, South Korea, during a flight over South Korea Sept. 21, 2016. The B-1 is the backbone of the U.S. long-range bomber mission and is capable of carrying the largest payload of both guided and unguided weapons in the Air Force inventory. (South Korean air force photo/Chief Master Sgt. Kim, Kyeong Ryul)
South Korean air force/Chief Master Sgt. Kim, Kyeong Ryul
A U.S. Air Force B-1B Lancer, deployed to Andersen Air Base, Guam, is flanked by two F-15K Slam Eagles, assigned to Daegu Air Base, South Korea, during a flight over South Korea Sept. 21, 2016. The B-1 is the backbone of the U.S. long-range bomber mission and is capable of carrying the largest payload of both guided and unguided weapons in the Air Force inventory. (South Korean air force photo/Chief Master Sgt. Kim, Kyeong Ryul)
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Story highlights

Two US B-1 bombers departed Andersen Air Force base in Guam for a joint drill

Two B-1 bombers also flew over South Korea in late April

(CNN) —  

US Air Force B-1 bombers have conducted four presence missions in the Indo-Asia-Pacific region since April 1 and flown near the Korean Peninsula twice in the past two weeks – a move that has drawn sharp criticism from North Korea amid rising tensions in the region.

On Monday, two US B-1 bombers departed Andersen Air Force base in Guam and conducted a joint drill with South Korea and Japan’s air forces over the Korean Peninsula, according to the US Air Force.

Separately, two B-1 bombers also flew over South Korea in late April, according to a US defense official. Bombers also flew near Australia on April 17 and close to the South China Sea on April 11, the official told CNN.