Kenneth Bae, 44, who was born in South Korea but is an American citizen, has been held since November when he visited the North Korean city of Rason.
He was tried in the country's Surpreme Court on charges of plotting to overthrow the government but the exact nature of his alleged crime has not been revealed.
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It comes as 22 charities signed an open letter vowing to improve safeguarding, and apologising for 'failures' in the sector.
Olympic freestyle skier Gus Kenworthy said the dog meat farm in South Korea was 'one of the saddest places I've seen'.
Two-year-old Casper Platt-May and his six-year-old brother Corey died in the crash in Coventry on Thursday.