SEOUL: Recent satellite images suggest that speculation North Korea will launch a satellite rocket on or before a key political anniversary next month is probably unfounded, US experts said on Friday. And while analysis of separate images showed new activity at the North’s nuclear test site, the same experts said there was no indication it was linked to preparations for an actual test. There has been fevered speculation for months that the North might launch a long-range rocket to mark the 70th anniversary of its ruling Workers’ Party on October 10. Hints dropped by the head of the North’s space agency have fuelled the conjecture, while comments by the chief of the national atomic commission have led to additional talk of a possible fourth nuclear test. The US, South Korea and its allies have made it clear that any rocket launch will be deemed a test of ballistic missile technology in violation of United Nations resolutions.