S. Korea installs parts of contentious US missile defense

In this Monday, April 24, 2017 photo released by the U.S. Navy, the Ohio-class guided-missile submarine USS Michigan is greeted as it arrives in Busan, South Korea, for a scheduled port visit while conducting routine patrols throughout the western Pacific. (Mass Communication Specialist 2nd Class Jermaine Ralliford/U.S. Navy via AP) (The Associated Press)

U.S. Air Force's A-10 attack aircrafts prepare to take off at Osan Air Base in Pyeongtaek, South Korea, Tuesday, April 25, 2017. South Korea's military said Tuesday that North Korea held major live-fire drills in an area around its eastern coastal town of Wonsan as it marked the anniversary of the founding of its military. (Hong Hae-in/Yonhap via AP) (The Associated Press)

SEOUL, South Korea – South Korea says key parts of a contentious U.S. missile defense system have been installed a day after rival North Korea showed off its military power.

The work to set up the Terminal High-Altitude Area Defense system, or THAAD, within this year has angered North Korea, China and Russia, which see the system's powerful radars as a security threat.

South Korea said in a statement Wednesday that unspecified parts of THAAD were deployed. The statement said that Seoul and Washington have been pushing to get THAAD working soon to cope with North Korea's advancing nuclear and missile threats.

South Korea's Yonhap news agency says six launchers, some intercept missiles and at least one radar have been deployed.

Seoul says North Korea conducted huge live-fire drills Tuesday.

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