By Michael McHugh, PA

A public inquiry has been launched into Northern Ireland's botched green energy scheme.
Sinn Fein finance minister Mairtin O Muilleoir ordered the probe to "get to the truth".
The Renewable Heat Incentive (RHI) scheme is predicted to cost taxpayers up to £490 million over the next 20 years.
It precipitated the collapse of Stormont powersharing.
Mr. O Muilleoir said: "This inquiry will be impartial and objective. I will not interfere in its work. It will be tasked to get to the truth of this issue."

Mr. O Muilleoir said the inquiry report must go to the finance minister.
He said: "I give a commitment that I or any Sinn Fein minister will release the report in full to the public on receipt.
"I call on all parties to sign up to unrestricted, unedited publication.
"I am aware that the RHI issue goes beyond financial matters to questions of governance and probity.
"By getting to the truth of the RHI scandal, this inquiry report will, I believe, address those wider issues, and, therefore, put the public first."

Voters in Northern Ireland are set to go to the polls on March 2 after deputy first minister Martin McGuinness resigned in protest over the flawed scheme.
The money was designed to encourage businesses to use green energy instead of fossil fuels but ended up paying out around £1.60 for every £1 spent on wood to fuel biomass boilers.
There have been allegations of empty sheds being heated in a "cash for ash" scandal.
A call for a public inquiry was backed by the devolved Assembly earlier this week.
Mr. O Muilleoir said: "It is clear that, with time short until the Assembly dissolves, the only way to serve the public interest is for me as Finance Minister to move to institute a public enquiry immediately. No other type of investigation is now feasible given time pressures.
"I have now instructed officials to take the necessary steps to establish a public enquiry under the Inquiries Act 2005 into the RHI scheme."