In May, a UN court at The Hague rejected a bid for his release from jail as he was nearing the end of his life.
The judge agreed his situation was “dire” but ruled that he was receiving “comprehensive and compassionate treatment” in prison.
He had been held at the UN detention facility since 2011.
Mladić commanded Bosnian Serb forces in the 1990s against the Bosnian Croat and Bosniak (Bosnian Muslim) armies.
During the war his troops committed “ethnic cleansing” in Bosnia-Herzegovina, besieged the main city of Sarajevo with the deaths of more than 10,000 people, and carried out the massacre of 8,000 men and boys at Srebrenica.
