North Korea is trying to rebuild its nuclear test site to prepare for new tests.

APA reports that the statement was made by US Permanent Representative to the UN Linda Thomas-Greenfield at a meeting of the Security Council on Pyongyang's missile tests.

"North Korea is also working to rebuild its nuclear test site to prepare for its seventh nuclear test," he said.

Thomas-Greenfield said talks on a draft UN Security Council resolution proposed by the United States on new sanctions against North Korea over missile tests were nearing completion.