The death toll has reached 139 in the continuing search for missing passengers from the capsized Sewol ferry in South Korea.
The Sewol ferry sank last Wednesday on a routine trip south from the port of Incheon to the sub-tropical holiday island of Jeju.
Of the 476 passengers and crew on board, 339 were children and teachers on a high school outing.
More top news
The Office for National Statistics said gross domestic product grew by just 0.1%.
William's comments came during a surprise appearance at an event scheduled for just his brother.
Matt Campbell, who collapsed just a few miles from the finish line, had hoped to raise £2,500.