Washington has many "tools in its tool kit" to respond to any such North Korean nuclear missile test, U.S. national security adviser Robert O'Brien said in an interview with ABC's "This Week."

Tuesday's rocket launcher test was made hours after North Korea said it was willing to resume nuclear negotiations with the United States in late September.

U.S. official: "We are aware of reports of a missile launch from North Korea."

U.S. President Donald Trump said Monday that he is not "personally bothered" by recent short-range missile tests that North Korea conducted this month, breaking with Japanese Prime Minister Shinzo Abe, who is hosting the president on four-day state visit full of pageantry

North Korea appears to have tested a new short-range missile - and President Donald Trump's resolve to keep it from doing more of the same in the future.

The joint chiefs of staff said Korea and U.S. authorities are analyzing details of the missile, which was fired at around 9 a.m., Yonhap said.

Kim Jong Un said he would be willing to give up his nuclear weapons if the U.S. commits to a formal end to the Korean War and a pledge not to attack the North, Seoul officials said Sunday.

The Australian Federal Police said the 59-year-old naturalized Australian used encrypted communication to broker sales and discuss the supply of weapons of mass destruction.

What would happen if North Korea launched a nuclear missile at the U.S.?

North Korea released dozens of photos Thursday of the Hwasong-15, a new intercontinental ballistic missile it claims can reach any target in the continental United States.