An extensive intelligence assessment has detected “no unusual movements” in North Korea, South Korea’s Minister of Unification said Monday, amid mounting rumors that leader Kim Jong Un is suffering from ill health.

Speaking at a forum in Seoul on Monday, minister Kim Yeon-chul said that South Korea could now “confidently say” that nothing unusual was taking place in the North.

While stipulating that Seoul’s process in obtaining that intelligence could not be shared in detail, Kim stressed the assessment had been reached following “a complicated process,” according to South Korean newspaper Joongang Ilbo.

The minister’s remarks follow comments from