The U.S. Military has started moving parts of the controversial Thaad anti-missile defense system into a planned deployment site in South Korea amid high tensions over North Korea’s missile and nuclear programmes.

The United States and South Korea have agreed to deploy Thaad in response to the threat of missile launches by North Korea.

But China says it will do little to deter the north while destabilizing the regional security balance.

Trailer trucks carrying parts of the terminal high altitude area defense system entered the site on what had been a golf course in the county of Seongju.

The United States began moving the first elements of the advanced missile defense system into South Korea in early march after the north test-launched four ballistic missiles.

South Korea has said China has discriminated against some South Korean companies in retaliation against the deployment.