RBS sorry for IT glitch but makes no promises for future

Royal Bank of Scotland executive Simon McNamara says staff working around the clock to sort payments crash but no system is failsafe

Royal Bank of Scotland cannot rule out suffering another meltdown in its computer systems despite pledging to spend 150m a year making them more resilient, one of the bank's most senior executives said on Thursday.

With the bank still battling to put 600,000 payments into customer accounts that went missing on Wednesday, the bank's chief administrative officer, Simon McNamara, said he could not make the system failsafe.