Edward Snowden was allowed to leave Hong Kong despite an extradition request from the US because documents provided by the US government did not "fully comply with the legal requirements under Hong Kong law," the country's authorities told AP.
It said there was no legal basis to stop Snowden from leaving.
More top news
The comments are the latest twist in the row between the US and EU countries including Britain over trade tariffs.
St Paul’s Girls’ School in London was criticised by a former pupil over the exercise, which resulted in money going to charities.
‘They kept overtaking each other, so maybe the match will be closer than we expect,’ said Richard Nicholson, of Cannon Hall Farm, near Barns