On Wednesday, committee member Ndaragwa MP Jeremiah Kioni demanded to know from Internal Security Minister George Saitoti if the UK is funding ICC investigation in Kenya.
Prof Saitoti accused the committee of trying to press him, saying "police should be allowed to conclude their investigations on this matter."
Mr Kioni claimed that the British High Commission hosted opponents of Kibaki, including rights and governance activists John Githongo and Wainana Ndung'u and former Mungiki leader Ndura Waruinge to discuss regime change in Kenya on November 28 last year.
Ongeri denied any knowledge of such a meeting but added that although the British have denounced the documents he cannot "buy into that decision" because the denunciation "is their opinion.
Committee chairman Aden Keynan said the Foreign Affairs Minister should contact UK Foreign Secretary William Hague to unlock the diplomatic logjam said to be hampering the investigations.
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