People are voting in Kenya's general election amid fears that the result could trigger communal violence. <br/><br/>Queues at polling stations formed early and some minor stampedes were reported. The fierce contest is between the incumbent, Uhuru Kenyatta, who has been in power since 2013, and the veteran opposition politician Raila Odinga. <br/><br/>The most recent polls did not indicate a clear winner. President Uhuru Kenyatta has appealed for unity from countrymen, saying he would accept the result, and urged his rivals to do the same. <br/><br/>The 55-year-old son of Kenya's founding President, Mr Kenyatta, is seeking a second and final term in office. <br/><br/>The final week of campaigning has been marred by the murder of a top election official and claims of vote-rigging.