Troubled Bumi arm 'under attack," says director Bumi shares climbed on Tuesday by as much as 13pc, before closing up 6.5pc at 159.6p, as management at Bumi Resources said it is considering selling mines and carrying out a rights issue to speed up the repayment of its debt load, over which investors have concerns. Tensions between Bumi's UK and Indonesian backers were already high before the investigation was launched. Bumi was brought to the UK market as a cash shell, then called Vallar, in 2010 by Mr Rothschild. Fractures in his relationship with his Indonesian partners, the powerful Bakrie family, emerged last year when Mr Rothschild criticised the governance of Bumi Resources. The Bakries are one of the most powerful clans in Indonesia, but one that is going through financial turbulence. Questions have been asked about loans made by Bumi Resources to parties closely related to the company, while the Bakrie family is facing large compensation payments flowing from an environment disaster at one of its mines. The family is also shouldering costs relating to an attempt to catapult the eldest of three brothers, Aburizal Bakrie, to the Indonesian presidency in 2014. The Bakries" stake in Bumi has been diluted since Indonesian tycoon Samin Tan borrowed $1bn (£620m) to buy half their 47pc stake in Bumi. Relations between him and the Bakries are said to have soured as the group's share price has slumped. Shareholders are now waiting for Bumi's law firm, Macfarlanes, to complete the investigation. This is expected to take place within weeks, with the company's non-executives keen to end the uncertainty as soon as possible. Bumi declined to comment on Mr Srivastava's remarks.