Legal warfare broke out yesterday over Yuriy Vitrenko, the new head of Naftogaz, Ukraine’s largest oil and gas company and the nation’s largest taxpayer.

 The National Agency on Corruption Prevention said the Cabinet violated conflict of interest laws by moving Vitrenko on April 28 from his post as acting Energy Minister to CEO of the state energy company. Last night, Clare Spottiswoode, Chair of the Naftogaz Supervisory Board, called on Vitrenko to step down for 10 days until the legal wrangle is resolved.