A pair of U.S. B-1B Lancer bombers flew over the Korean Peninsula on Friday, in a response to North Korea's test of an intercontinental ballistic missile earlier this week, CNN reported.

North Korea test fired the ICBM on Tuesday, the U.S. Pacific Air Forces said.

“North Korea’s actions are a threat to our allies, partners, and homeland,” said Gen. Terrence O’Shaughnessy, the Pacific Air Forces commander. “Let me be clear: If called upon we are trained, equipped and ready to unleash the full lethal capacity of our allied air forces.”

The bombers flew from Guam and conducted a 10-hour mission, CNN reported. Upon reaching the Korean Peninsula, they were joined by U.S. Air Force F-16 fighter jets and South Korean F-15 fighter jets.

“The B-1Bs practiced attack capabilities by releasing inert weapons at the Pilsung Range,” the U.S. Pacific Air Forces said in a statement.

The Pilsung Range is located in the center of South Korea and is jointly operated by the U.S. and South Korean air forces, CNN reported.