A report said on Friday that North Korea now moved two intermediate range missiles to its east coast and loaded them on mobile launchers.

A report said on Friday that North Korea now moved two intermediate range missiles to its east coast and loaded them on mobile launchers.

South Korea's Yonhap news agency cited a top government official, who confirmed Pyongyang’s move.

"It has been confirmed that North Korea, early this week, transported two Musudan mid-range missiles by train to the east coast and loaded them on vehicles equipped with launch pads," the official told the agency.

The government official said the vehicles carrying the missiles had apparently been hidden in special underground facilities.

"The North is apparently intent on firing the missiles without prior warning," he added.

The Musudan has never been tested, but is believed to have a range of around 3,000 kilometers, which could theoretically be pushed to 4,000 with a light payload.

That would cover any target in South Korea and Japan, and possibly even reach US military bases located on the Pacific island of Guam.

South Korea’s Defense Ministry, which had confirmed the movement of one missile the day before, declined to comment on the report.