Some of those politicians believe that the International Criminal Tribunal for the former Yugoslavia (ICTY), in whose detention centre Milosevic was kept during his trial, should be held responsible for his death.
The 64-year-old Milosevic, who suffered from hypertension and coronal problems, was found dead in his cell on Saturday morning.
Serbia-Montenegro's Foreign Minister Vuk Draskovic, the leader of the Serbian Renewal party who was treated by the Milosevic regime as a dangerous opponent, said that it was a pity that Milosevic escaped justice.
Zoran Andjelkovic, a senior official of the Socialist Party of Serbia which used to be led by Milosevic, said that Milosevic "was killed in the Hague tribunal".
"The decision not to allow him to travel to Russia for medial treatment was actually the verdict against him. Responsibility lies with the Hague tribunal," Andjelkovic sad.
Tomislav Nikolic, the Vice President of the Serb Radical Party (SRS) whose chief, Vojislav Seselj, is also in the ICTY detention centre awaiting trial, said he feared that "a similar fate can befall other Serb indictees in the tribunal".
Somebody has decided that Serbs in the Hague tribunal should have no rights that they are not human beings and that Milosevic must be detained in the tribunal even at the price of his death, Nikolic said.
Milosevic's brother Borislav, a former Yugoslav Ambassador to Russia, and some Russian politicians were quoted by the Franch Presse Agency as accusing the tribunal of his death.
Those who refused to allow him to come (in Russia) for medical treatment must resign, the Russian Parliament's Deputy Speaker Ljubov Sliska was quoted by the Ria-Novosti news agency as saying.
The leader of the Russian Communist Party Genadij Zjuganov also said that Milosevic's death should burden the conscience of judges who did not grant his request to undergo medical treatment in Russia.