PwC has withdrawn its entire set of audit reports over 10 years for the bankrupt Yukos oil group, in a move that marks a significant climbdown by the global audit firm following months of Russian government pressure.

PwC said on Sunday it was withdrawing all its audit reports of Yukos from the years ending 1995 to 2004 because Russian prosecutors had unearthed new information that led it to believe statements provided by Yukos management in the past “may not have been accurate”.