The party canceled planned nationwide protests after the death toll from the ethnic and political unrest rose to 500.
A U.S. envoy sent to Africa said the vote counting was rigged and urged Kenyan leaders to quickly find a solution to the crisis and to implement political, social and electoral reforms.
Frazer has also met with Kenyan President Mwai Kibaki to encourage a political reconciliation between the men.
Tuesday, the head of the African Union, Ghanian President John Kufour was scheduled to arrive in Nairobi to spearhead mediation between the two parties.
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