Kenyan police have used tear gas and water cannon to try to prevent a mass protest against the result of last week's election.
Supporters of Kenyan presidential candidate Raila Odinga tried to converge on the centre of Nairobi for a rally which the authorities have banned.
Odinga supporters say the 27 December election which saw President Mwai Kibaki re-elected was rigged.
Mr Odinga had urged one million supporters to gather in Uhuru Park in central Nairobi.
But Kenyan police fired live rounds over the heads of Odinga supporters trying to leave Kibera slum in order to take part.
Police also used tear gas and water cannon to try to disperse them long before they reached Uhuru Park.
Some shops and other buildings have been set on fire in several districts of Nairobi. At least 300 people have been killed and thousands displaced in a week of violence.
This newspaper urges Kenyans to "Save our beloved country". The international community has called for Mr Kibaki and Mr Odinga to hold talks to resolve the crisis.