Belgrade  -  Posters with an image of Serbian president Boris Tadic and Deputy Prime Minister Bozidar Djelic branded as "enemies of state" surfaced Friday on the streets of Belgrade.

The picture was taken during the signing of Stabilization and Association Agreement (SAA) with European Union earlier this week in Luxembourg.

The posters were signed by an organization calling itself the Family of Serb Fans.

Along with the "enemies of state" posters, another poster with the image of Punisa Racic has also been put up in Belgrade.

Racic was the Serb prime minister who assassinated three Croat colleagues from the Kingdom of Serbs, Croats and Slovens parliament in 1928 which even further alienated the Croats and the Serbs. He is highly appreciated by Serb nationalists.

The nationalist majority in Serbia denounced the SAA as treason and legally null and void. Serbian increasingly nationalist caretaker Prime Minister Vojislav Kostunica that the new government and parliament will annul the "Tadic-Djelic agreement" with the EU.

"That agreement has only one purpose - to interpret Tadic-Djelic signature as a signature on independence of Kosovo," he told Tanjug state agency on Friday.

Serbia is facing early parliamentary elections on May 11 with latest surveys showed the anti-European bloc led by Kostunica and main opposition Radical party could win more seats in the parliament than the pro European parties led by Tadic.

Kosovo declared independence from Serbia in February. The youngest European state was recognized by most EU members and major western powers. Serbia, backed by Russia, oppose it.

The SAA is a document setting out how an aspiring EU member should reform its political, economic and legal systems to come in line with EU norms, and how the EU should help it do so.

As its name suggests, it is designed to bring basic stability and prosperity to a region devastated by the conflict that erupted after the implosion of the former Yugoslavia.

The ratification of Serbia's SAA was made conditional on Belgrade proving that it was cooperating fully with the International Criminal Tribunal for the former Yugoslavia
(ICTY) in The Hague. (dpa)