Amateur foreign runners invited to 27th annual Mangyongdae Prize Marathon for the first time . Runners from 15 countries take part , they say . Race a bizarre experience which covers a wide swathe of country .
Amateur foreign runners invited to 27th annual Mangyongdae Prize Marathon for the first time . Athletes from 27 countries took part , officials say . Race a bizarre experience which covered a wide swathe of Pyongyang .