China's Foreign Ministry refused to say on Wednesday where its ambassador to Iceland was or who was even representing Beijing in the country, following reports he had been arrested by state security for passing secrets to Japan.

New York-based Chinese language portal Mingjing News reported on Tuesday that China's Ambassador to Iceland Ma Jisheng and his wife had been taken away by Chinese state security earlier this year.

It said Ma was suspected of becoming a Japanese spy while working in the Chinese Embassy in Tokyo between 2004 and 2008.