BELGRADE, August 3, 2008 (AFP) - Serbia's president vowed Sunday to continue to cooperate fully with The Hague-based UN war crimes court following the arrest of genocide suspect Radovan Karadzic, dismissing the need for any 'additional pressure' on the Balkan country.

'All those who have the idea to put additional pressure on Serbia (to cooperate) are knocking on open doors, because not only has Serbia shown its will and determination but it also has made concrete steps related to this cooperation,' Tadic told reporters in Belgrade.

'There is no need for anyone to put any pressure on Serbia for further cooperation with The Hague's tribunal,' he added at his first press conference since Karadzic's arrest on July 21, though he made no specific comments about the capture.

Bosian Serb ex-leader Karadzic was arrested after spending more than a decade as a fugitive and transferred to the International Criminal Tribunal for the former Yugoslavia (ICTY) to be tried for alleged war crimes during the 1992-1995 conflict in Bosnia.

Serbia is now expected to arrest and deliver two remaining fugitives, namely Karadzic's military chief, Ratko Mladic, and a Croatian Serb wartime leader Goran Hadzic, both believed to be in hiding in Serbia.

Serbia's full cooperation with the ICTY has been a key condition for its further integration towards full membership of the European Union.

'Today nobody can tell Serbia it is avoiding international justice and it does not respect international law,' Tadic said.

'Today nobody can tell Serbia it was not ready to arrest those indicted by The Hague tribunal and to show its full readiness to cooperate with that international legal institution,' he added.

Tadic has reportedly received several death threats from angry nationalists ever since his office announced the capture of the Bosian Serb war crimes and genocide suspect.

The hardline opposition Serbian Radical Party has organised a number of protests against Karadzic's arrest and Tadic's 'treacherous and dictatorial regime.'

According to a report by the nationalist weekly Pecat, Tadic was personally involved in the operation.

Citing 'well informed sources,' the weekly reported in its latest issue that 'coordinators of the action of Karadzic's arrest were the president of Serbia Boris Tadic, war crimes prosecutor Vladimir Vukcevic,' and others.

It said that Britain's MI6 and the US spy agency CIA were also kept informed.

But Tadic denied the report, saying it was not his job.

'As the president of Serbia I do not interfere in the job of those who are obliged to be engaged in the arrest of the people who are wanted or indicted. As the president of Serbia, I do not execute that job,' Tadic said.

He praised Serbian security services for 'doing their job,' in a clear reference to Karadzic's arrest.