"Sustainability is key. We need to

commit

to Haiti for the long term. It is not an exaggeration to say that 10 years of hard work at least awaits the world in Haiti. We need to focus on effectiveness. The Haitian people

deserve

it, and our own taxpayers expect it."

Earlier, the Haitian Prime Minister Jean-Max Bellerive said his government could lead the rebuilding, but he added it would need to

rely strongly on

its international partners.

The authorities in Nigeria said they had arrested more than 300 people in connection with the violence between Christians and Muslims in Plateau state. A police spokesman said they would be

prosecute

d in the city of Jos, the scene of most of the clashes. Officials now say 326 people died in the violence, although medical workers have put the figure far higher. Caroline Duffield reports from Abuja.

Until now, local authorities have refused to give details of the number of people shot, burned and hacked to death in the violence of the last week. The figures that they have now released will be greeted with

skepticism

. The violence has been intense and widespread. People, who

lived through

the attacks of November 2008, just over a year ago, say that this time it was worse. Villages, markets, settlements and suburbs have all been burned and destroyed.

This is Michael Powles with the latest World News from London and the BBC.