Willem van der Bijl, the stamp dealer who was missing in North Korea, has been freed and returned to the Netherlands.

According to local RTV Utrecht, van der Bijl was imprisoned for two weeks at the end of his stay, possibly for taking photographs in a restricted area.

He was questioned daily for two weeks, then allowed to leave after signing a declaration. He was flown to Beijing on Saturday and from there to the Netherlands.

Additional reporting by Adrian Keppel.