Latest satellite imagery shows it's still unclear whether North Korea will carry out a widely-speculated fifth nuclear test at this time.<br />The U.S.-based North Korea monitoring website 38 North said there is a very low level of activity at North Korea's Punggye-ri test site.<br />Images taken on Monday show one small crate or trailer present immediately outside the North Portal, where three of the North's four nuclear tests took place.<br />Other than that, there's no readily apparent activity such as vehicles or personnel present.<br />The website says Pyongyang could have made all the necessary preparations for a test or the pictures could show some maintenance work is taking place.<br />Concerns have been mounting that the North could carry out another nuclear test as Kim Jong-un tries to further solidify his grip on power ahead of the regime's Workers' Party Congress this Friday. <br /><br />
