Kenyan opposition leader Raila Odinga has claimed hackers infiltrated the database of the country's election commission and manipulated the results in what he called an "attack on our democracy".
His allegations of fraud on Wednesday followed the release of election results showing President Uhuru Kenyatta with a wide lead over Mr Odinga after votes from the vast majority of polling stations had been counted.
Mr Odinga claimed the alleged hackers "created errors" in the election commission's database and described Tuesday's election as a "fraud".
Mr Odinga also ran against Mr Kenyatta in the 2013 vote and unsuccessfully challenged the results in court with allegations of vote-tampering.
The long-time opposition figure also ran in the 2007 election, which was followed by violence fuelled by ethnic divisions that killed more than 1,000 people.
Later, a witness said hundreds of protesters are rioting in Kisumu, a city in south western Kenya that is a stronghold of Mr Odinga.
Kenyan journalist Fred Ooko said people from the Kondele slum in Kisumu burned tyres and blocked roads in the port city on Lake Victoria, one of Kenya's largest urban centres.
Authorities have been concerned about possible violence following elections on Tuesday.
Why are you making commenting on The Herald only available to subscribers?
It should have been a safe space for informed debate, somewhere for readers to discuss issues around the biggest stories of the day, but all too often the below the line comments on most websites have become bogged down by off-topic discussions and abuse.
heraldscotland.com is tackling this problem by allowing only subscribers to comment.
We are doing this to improve the experience for our loyal readers and we believe it will reduce the ability of trolls and troublemakers, who occasionally find their way onto our site, to abuse our journalists and readers. We also hope it will help the comments section fulfil its promise as a part of Scotland's conversation with itself.
We are lucky at The Herald. We are read by an informed, educated readership who can add their knowledge and insights to our stories.
That is invaluable.
We are making the subscriber-only change to support our valued readers, who tell us they don't want the site cluttered up with irrelevant comments, untruths and abuse.
In the past, the journalist’s job was to collect and distribute information to the audience. Technology means that readers can shape a discussion. We look forward to hearing from you on heraldscotland.com
Comments & Moderation
Readers’ comments: You are personally liable for the content of any comments you upload to this website, so please act responsibly. We do not pre-moderate or monitor readers’ comments appearing on our websites, but we do post-moderate in response to complaints we receive or otherwise when a potential problem comes to our attention. You can make a complaint by using the ‘report this post’ link . We may then apply our discretion under the user terms to amend or delete comments.
Post moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours.
Read the rules here