North Korea’s apparent destruction of a nuclear test site last month may not be all that it seemed, according to experts quoted in US media.

US intelligence and international arms control officials have questioned whether the explosions seen in footage actually demolished the facility, according to CNN.

Kim Jong-un invited dozens of journalists to witness the apparent shutting down of its underground nuclear test site at Punggye-ri last month.

The move was framed as a good will gesture from Pyongyang amid warming relations with America and the June 12 summit between Kim and Donald Trump.

Footage of the apparent destruction were beamed around the world and journalists at the scene reported hearing a “huge” explosion.