Former war crime fugitive and Bosnian Serb leader Radovan Karadzic refused Friday to enter a plea at the U.N. court for the former Yugoslavia, saying he did not recognize the authority of the court.

Karadzic stands accused of overseeing a brutal ethnic cleansing campaign against Muslims and Croats in the area, including a massacre at the U.N. enclave of Srebrenica.

Prosecutors hope to expedite the proceedings as former Yugoslavian leader Slobodan Milosovic died of a heart attack in 2006 before the conclusion of his genocide trial.

Karadzic faces 11 charges of war crimes.

The tribunal judge entered a not guilty plea on his behalf.