Otto Warmbier's family files claim on seized North Korean coal ship

The family of an American college student who died after he was held prisoner in North Korea, has filed a claim on cargo ship that was seized from the country by US authorities.

Otto Warmbier was accused of theft on a visit to the secretive communist state in January 2016 and jailed for almost a-year-and-a-half.

When he was released back to the US in June 2017 he was in a vegetative state. He was blind and deaf, and had sustained severe brain damage. He died later that month.