Kenya votes in for a new constitution

Kenyans are voting in a referendum on a new constitution, the centrepiece of measures designed to reform politics.
It limits the powers of the president and sets up a commission to settle land disputes that fuelled violence in the past.
The referendum was part of a deal that ended deadly clashes after a disputed election in December 2007 when more than 1,000 people were killed.
Both the president and the prime minister are backing the "Yes" vote.
And opinion polls suggest the new constitution will be approved.
President Mwai Kibaki has appealed to Kenyans to vote peacefully and in large numbers.
"Security has been stepped up in all parts of the country," Kibaki said.
In a televised address, he said the referendum marked a "defining moment" in the country's history.
He and his rival in the 2007 election, Prime Minister Raila Odinga, have both backed the "Yes" campaign.
Polling stations opened at 0600 (0300 GMT), with long queues already waiting in some places. Some people told the BBC they had been waiting several hours for voting to begin.
The current constitution was negotiated with the British in London in the early 1960s.