A mob burned down a church in Kenya's Rift Valley on Saturday, hours after the country's battling political leaders agreed to a truce.

The latest violence continues a string of incidents amid heightened political tension following the disputed results of the country's presidential election in late December.

Rioters turned a wood and stone Pentecostal church in the town of Eldoret into a smouldering ruin overnight. Peter Ndungu, the nephew of the church's owner, who had fled, said it was because his aunt was from President Mwai Kibaki's ethnic group.

The building was empty at the time of the fire.

Eldoret saw one of the worst attacks of post-election violence when a mob set fire to a church on Jan. 1, killing up to 50 people inside.

Month-long fighting has left about 800 Kenyans dead and 300,000 displaced.

The latest violence came a day after former UN secretary general Kofi Annan brokered a deal between Kenya's rival parties to take action to end the fighting. Two days ago, opposition politician David Kimutai Too was shot dead in Eldoret.

In a document signed Friday, both sides called for illegal militias to be disbanded and for the investigation of all crimes connected to the violence, including alleged excessive use of force by police.

The document said an agreement might require "adjustments" to the constitution — suggesting a power-sharing arrangement, being pushed by the international community, that would give opposition leader Raila Odinga a new position as prime minister.

President Kibaki blamed the opposition for the month-long fighting, while Odinga blamed the government, but both sides condemned the violence.