Vice Premier Zhang Dejiang, who was put in charge of the mega-city of Chongqing in the scandal's wake, also told reporters that he had no information about when his predecessor, the now purged leader Bo Xilai, would go on trial.
Zhang was speaking at a meeting of Chongqing delegates to the Communist Party congress that opened today.
Bo has been accused of violations ranging from corruption to involvement in covering up his wife's murder of Briton Neil Heywood in a dispute.
The Wall Street Journal reported earlier this week that Heywood was an informant for British intelligence. Zhang said in response to a reporter's question that to date, he had not seen evidence that Heywood was a spy.
As the most powerful official in Chongqing, Bo had been considered a candidate for a seat on the party's all-powerful Politburo Standing Committee, and his toppling exposed sharp infighting in the party's uppermost ranks.
The scandal unfolded in early February after Bo's then top aide Wang Lijun fled to the US consulate in Chengdu, where he told the Americans his concerns about Heywood's death.
That prompted the British Embassy to request a new investigation, which uncovered that Heywood had been murdered. Bo's wife was given a suspended death sentence for the murder in August.
Beijing: A top Chinese leader said on Thursday there's no evidence the British businessman whose murder became part of a major political scandal was a spy.
First Published: Thursday, November 08, 2012, 19:39