North Korean Supreme Leader Kim Jong Un has been warned that he and senior leadership figures could be held accountable for crimes against humanity, a panel of experts mandated by the UN's Human Rights Council to investigate human rights abuses in North Korea said on Monday.

The warning that Kim Jong Un could personally be referred to the International Criminal Court came as a UN Commission of Inquiry (COI) led by Australian chair Judge Michael Kirby presented a 400 page report documenting human rights abuses in North Korea at a press conference in Geneva.