Bosnian Croat war criminal Slobodan Praljak likely died from heart failure after swallowing potassium cyanide, Dutch prosecutors said late Friday two days after he committed suicide in front of UN judges.

"The preliminary results of the toxicological test showed that Mister Praljak had a concentration of potassium cyanide in his blood," the Dutch prosecution said in a statement. "This has resulted in a failure of the heart, which is pointed out as the suspected cause of death." 

Source: AFP