**Allies of Kenyan Prime Minister Raila Odinga have said they will boycott cabinet meetings until a dispute with President Mwai Kibaki has been sorted.**The two men clashed on Sunday after Mr Odinga suspended two ministers accused of corruption - only for Mr Kibaki to reverse the decision hours later.
A spokesman for Mr Odinga’s party says the prime minister can no longer function properly in the government.
The two rivals formed a coalition to end riots following the 2007 election.
Some 1,300 people died in the violence and tens of thousands were displaced.
Missing funds
The BBC’s Will Ross in Nairobi says vital reforms, intended to prevent a repeat of the 2007 violence, have not been put in place yet.
And he says the current situation is worrying because there is a risk of the coalition government collapsing if the dispute is not resolved.
The US has called on both leaders to work together to tackle corruption.
On Monday, Mr Odinga called for former UN Secretary-General Kofi Annan to intervene in the dispute
But the political situation is further complicated for Mr Odinga, because his own party - the Orange Democratic Movement - is split.
Some members are expressing solidarity with Agriculture Minister William Ruto - one of the ministers Mr Odinga tried to suspend.
Mr Ruto, under suspicion after a recent audit into a maize scandal revealed that $26m (£16.5m) had gone missing, was an ally of the prime minister but the pair are now fierce rivals.
Education Minister Sam Ongeri, from Mr Kibaki’s Party of National Unity, was targeted for suspension after more than $1m earmarked for schools went missing.