The US military has detected no signs of North Korea preparing a second nuclear test, South Korea's Yonhap news agency reported Tuesday.
US military officials gave that intelligence assessment to their South Korean counterparts during annual defense talks in Washington last week, Yonhap said, citing unidentified defense officials.
North Korea undertook its first-ever nuclear test on Oct. 9 and has threatened to take further "physical measures." The communist state didn't specify what those measures would be, but another nuclear test has been widely believed to be a possibility.
Earlier this month, US media reported that the North may be preparing a second test, citing suspicious activity at a suspected test site in the North's northeast.