The government reportedly continues to detect movements of autos and personnel near the North Korean county of Kilju in North Hamgyeong Province, which is where Pyongyang previously conducted two nuclear tests.

A government source said Thursday that consistent movements have been detected in Kilju since the North conducted its second nuclear test in May of last year. However, the source added that the movements alone do not suggest that the North will for sure conduct another nuclear test.

The source said the movements could be part of ordinary management operations, noting that areas surrounding Kilju are strategically important for the communist state given that they house nuclear test sites. The source said Seoul and Washington continue to keep a close eye on North Korea’s nuclear facilities, including the ones at Kilju.

Another source said that given North Korea conducts its nuclear tests underground, it is difficult to determine what bearing movements of autos and personnel in the areas have on whether or not the North will conduct another test.