"The Justice Ministry has not yet received an official confirmation of the arrest, but since the person in question has been sentenced for war crimes, we can announce that we will request his extradition," Justice Ministry spokeswoman Vesna Dovranic told Hina.
Interior Ministry spokesman Zlatko Mehun said that the Interpol Office in Zagreb had been notified by their colleagues from Sarajevo on Wednesday that Pupovac had been arrested at a border crossing between Bosnia and Serbia near the eastern town of Zvornik on Monday.
Mehun said that the Croatian Interior Ministry had issued an international warrant for the arrest of Pupovac in late February this year following an order by the Zadar County Court, which sentenced Pupovac in absence last June to eight years in prison for war crimes against civilians.
Pupovac, age 36, was found guilty of mistreating and beating residents of the village of Rastevic and of looting and destroying their property on several occasions as a member of Serb paramilitary forces.
Pupovac was born in Benkovac, 30 kilometres east of the coastal city of Zadar, and resides in Sabac, Serbia.