The European Union election observer mission in Kenya says it has seen no signs of “centralised or localised manipulation” of the voting process.

Marietje Schaake, the leader of the mission said that the EU mission’s final report would evaluate the conduct of the tallying process, which opposition leader Raila Odinga said had been compromised by hackers.

Kenya’s election commission dismissed claims on Wednesday by opposition leader Raila Odinga that its systems and website had been hacked to produce a “fictitious” lead for Odinga’s long-time rival President Uhuru Kenyatta.

Angry protests erupted in opposition strongholds in the capital Nairobi and the western city of Kisumu as the counting of votes from Tuesday’s election continued, but the election commission said the election had been free and fair.

Police shot dead at least three people and protesters killed a fourth, witnesses said.

Although the violence remained largely contained, Kenyans were nervously hoping to avoid a repetition of the ethnic killings that followed a disputed 2007 presidential poll, when 1,200 people died.

As of 1900 GMT, provisional results from the election commission website put Kenyatta in front with 54.3 per cent of votes counted to 44.8 per cent for Odinga, a margin of 1.4 million ballots with 97 percent of polling stations reported.

Earlier Odinga published his own party’s assessment of the count on Twitter, saying he had 8.1 million votes against 7.2 million for Kenyatta.

He however provided no supporting documentation.