A Sky News report has alleged that Royal Bank of Scotland is examining proposals to claw back up to 100m pounds from pay deals previously awarded to executives in its investment bank as it prepares to settle allegations that it played a role in the LIBOR rate-rigging conspiracy.According to the news report, which did not cite sources nor indicate where its information had come from, the bank's remuneration committee is reportedly assessing plans for a "flat tax" on the pay packets of hundreds of directors and managing directors in its markets business.The article said that no decisions had yet been taken about the precise structure of the plan to reclaim bonuses previously awarded to staff, but alleged that if the RBS board gave the new proposal the go-ahead, it would mean a larger number of the bank's employees having their bonuses docked than was previously thought.ShareCast contacted the RBS press office and a spokeswoman said that no decisions had been taken and declined to comment further.RBS' share price was down 0.52% to 341.60p at 13:49 on Friday. MF