US coroner investigating death of student freed from North Korea

A coroner's office in Ohio is investigating the death of a college student who died less than a week after his return to the US after nearly a year-and-a-half in North Korean detention.

A spokesman for Hamilton County Coroner Dr Lakshmi Sammaraco said the office "accepted the case" of Otto Warmbier, 22, who died on Monday in a Cincinnati hospital.