US starts moving missile defence to SKorea

The US is moving parts of its controversial missile defence to SKorea after a series of missile launches by the north.

The US military has begun moving equipment for a controversial missile defence system to its ally South Korea.

The announcement by the US military comes a day after North Korea test-launched four ballistic missiles into the ocean near Japan.

The plans to deploy the Terminal High-Altitude Area Defense system, or THAAD, have angered not only North Korea, but also China, which sees the system's powerful radars as a security threat.

Some South Korean liberal presidential candidates have also said that the security benefits of having THAAD would be curtailed by worsened relations with neighbours China and Russia.

South Korea and the US have said they plan to have THAAD operational by the end of the year.