US successfully tests missile-interceptor system

US forces carried out a successful test Sunday of a missile-interception system, military officials said.

The test of the so-called THAAD system, which the United States wants to set up in South Korea, came two days after North Korea's second test of an ICBM.

In the American test, a medium-range missile was launched from a US Air Force C-17 aircraft flying over the Pacific and a THAAD unit in Alaska "detected, tracked and intercepted the target," the US Missile Defense Agency said.