US conducts successful missile intercept system amid N Korea test launch

US launch comes over tension following North Korea's test launch that could potentially reach Alaska

The US military has conducted a successful test of a missile intercept system, officials said today, as tensions soar following North Korea's test launch of an intercontinental ballistic missile that could potentially reach Alaska.

The test of the Terminal High Altitude Area Defense (THAAD) system saw a ballistic missile target air-launched from an Air Force C-17 over the Pacific Ocean north of Hawaii.

"A THAAD weapon system located at (Pacific Spaceport Complex Alaska) in Kodiak, Alaska, detected, tracked and intercepted the target," the US Missile Defense Agency said in a statement.

THAAD is designed to intercept and destroy short-, medium- and intermediate-range ballistic missiles during their final phase of flight.

Though such exercises are planned months in advance, it comes after North Korea's first-ever test-firing last week of an intercontinental ballistic missile capable of reaching parts of the United States including Alaska.

THAAD is not designed to stop an ICBM -- that job is left primarily to the Ground-based Midcourse Defense (GMD) interceptor system.

The US military this year began deploying THAAD to South Korea, a move that infuriated China, which has argued the deployment would further destabilize the situation on the Korean peninsula.

This was the 14th successful intercept in 14 attempts for the THAAD weapon system, the Missile Defense Agency (MDA) said.

"I couldn't be more proud of the government and contractor team who executed this flight test today," MDA Director Lieutenant General Sam Greaves said in the statement.

"This test further demonstrates the capabilities of the THAAD weapon system and its ability to intercept and destroy ballistic missile threats. THAAD continues to protect our citizens, deployed forces and allies from a real and growing threat."

The US also has a THAAD system installed in Guam.

THAAD uses "hit-to-kill" technology where kinetic energy from the interceptor missile destroys an incoming target.

"The successful demonstration of THAAD against an (intermediate)-range missile threat bolsters the country's defensive capability against developing missile threats in North Korea and other countries around the globe and contributes to the broader strategic deterrence architecture," the MDA said.