Given the task definition and input, reply with output. This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: Slobodan Milosevic, as the former President of Serbia and of Yugoslavia, was the most senior political figure to stand trial at the ICTY. He died on 11 March 2006 during his trial where he was accused of genocide or complicity in genocide in territories within Bosnia and Herzegovina, so no verdict was returned. In 1995, the ICTY issued a warrant for the arrest of Bosnian Serbs Radovan Karadzic and Ratko Mladic on several charges including genocide. On 21 July 2008, Karadzic was arrested in Belgrade, and he is currently in The Hague on trial accused of genocide among other crimes. Ratko Mladic was arrested on 26 May 2011 by Serbian special police in Lazarevo, Serbia. Karadzic was convicted of ten of the eleven charges laid against him and sentenced to 40 years in prison on March 24 2016. Question: Where was Karadzic when he was finally arrested?
Belgrade