Cricket's governing body is to investigate allegations relating to the third one-day match between England and Pakistan at the Oval in London on Friday night.
Pakistan won the match by 23 runs, keeping the five-match series alive (England won the first two games).
The International Cricket Council's chief executive, Haroon Lorgat, says that a source has told the Sun newspaper a certain scoring pattern would emerge during certain stages of the match and that, broadly speaking, that information appears to have been correct.
Mr Lorgat says that the ICC does not know that anything untoward has occurred but believes a full investigation is warranted.
The new claims have emerged as a police file detailing evidence on claims that Pakistan cricketers accepted cash bribes to take part in spot-fixing during a match against England was handed to prosecutors.
Scotland Yard says the Crown Prosecution Service will consider evidence that there was a conspiracy to defraud bookmakers.