Kenya's incumbent President Uhuru Kenyatta has taken a strong lead as votes are counted after Tuesday's election, the BBC reported.

With 80% of results in he has 55% of the vote against 44% for his rival, Raila Odinga, figures show.

However, the opposition coalition has rejected the partial results, saying election officials have not produced documents to prove their validity.

"They are fictitious, they are fake," said Odinga.

"We have our projections from our agents which show we are ahead by far," he added.

The electoral commission is urging people to wait calmly for full results.

Many fear a repeat of the violence that followed the disputed 2007 election when more than 1,100 Kenyans died and 600,000 were displaced.

"During this critical phase, we urge all Kenyans to exercise restraint as we await official results from the polling stations and indeed as they start trickling in," the commission said.

Source: MENA