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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Alexander Downer said Australia would seek better access before reaching a post-Brexit trade agreement with the UK.
Emergency crews have rescued 11 survivors from Hotel Rigopiano, which was buried when the avalanche struck Wednesday afternoon.
Weather will be settled with with some sunshine and feeling cold