KIEV, June 5 – Two journalists who uncovered a massive case of alleged government corruption during a recent purchase of $400 million oil rig have sued energy minister for suggesting their story had been ordered by unnamed competitors.

Oleksiy Shalayskiy and Yuriy Nikolov responded to Energy Minister Yuriy Boyko’s accusation that the story had being “ordered” by the competitors to delay Ukraine’s offshore oil drilling in the Black Sea.