Landale told Hina over the telephone the date of Beara's arraignment would be set on Monday.
Serbian authorities said last night that Beara turned himself in and was escorted to The Hague by Justice Minister Zoran Stojkovic.
The spokeswoman for the Hague tribunal's Office of the Prosecutor, Florence Hartmann, said however that Beara was arrested but did not resist arrest and agreed to be transferred to The Hague immediately.
She told Hina over the telephone chief prosecutor Carla del Ponte would speak about the circumstances of Beara's transfer to The Hague in her address to the European Union's foreign ministers tomorrow.
Landale said he could not say whether Beara was arrested or turned himself in, adding this would be important when the tribunal decided about his provisional release.
Minister Stojkovic told Serbian Radio and Television that Beara's only condition for surrendering was to be escorted to The Hague by a senior government official and his family. According to unofficial reports, aside from Stojkovic, Beara was accompanied to The Hague by his wife and son.
The Hague tribunal indicted Beara, born in Sarajevo in 1939, on 26 March 2002, charging him with six counts of genocide and participation in genocide, extermination, murder, persecution on political, racial and religious grounds, and forcible relocation of the Muslim population of the eastern Bosnian town of Srebrenica between 12 and 19 July 1995.
At the time covered by the indictment, Colonel Beara was chief of security at the Bosnian Serb Army General Staff who was in charge, among other things, of Muslims captured in Srebrenica.
Under the indictment, Beara was a member and key figure of a joint criminal enterprise aimed at forcibly relocating women and children from Srebrenica to Kladanj on 12 and 13 July 1995, and at capturing, imprisoning, shooting dead, burying and reburying thousands of Muslim men aged between 16 and 60.
The indictment says more than 7,000 captured Muslims were killed on that occasion and that this represents the biggest war crime committed in Europe since World War Two.
Beara was mentioned as one of the crucial figures in the killing of Srebrenica Muslims by former Bosnian Serb officials Momir Nikolic and Miroslav Deronjic, whom the Hague tribunal sentenced to 27 and 10 years' imprisonment respectively after they pleaded guilty.
The other figures accused by the Hague tribunal of participation in the Srebrenica genocide are former Bosnian Serb political and military leaders Radovan Karadzic and Ratko Mladic, as well as army officers Vinko Pandurevic, Drago Nikolic, Vujadin Popovic, and Ljubisa Borovcanin, all of whom remain at large.