U.s. Sec Of State Says They Will Crack Down On N.korea

The US says North Korea has raised tensions in the region to "a dangerous level". It's after the secretive state announced the test of a new rocket system, that it claims is capable of launching satellites into space. North Korea has been criticised for trying to develop nuclear weapons. US Secretary of State Rex Tillerson has been holding talks in Beijing with China's leader Xi Jinping. He said the US will get more agressive in its approach with North Korea.