Communities Secretary Eric Pickles told ITV News that "there would be a process" in investigating claims that the Energy Select Committee Chairman Tim Yeo coached a paying client on how to influence his committee.
Mr Pickles said: "We have a process of dealing with allegations of this process, and normally we wait until that has been concluded".
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The four people killed in Wednesday's terrorist attack in London have been honoured by silences across the country.
Man of 58 is still being questioned as police announce that a man of 27 has been released without charge.
Wonderfully sunny weekend