Encouraged by the Austro-Hungarian government, the violent demonstrations assumed the characteristics of a pogrom, which led to ethnic divisions that were unprecedented in the city's history.

[3] On the night of the assassination, countrywide anti-Serb riots and demonstrations were organised in other parts of Austria-Hungary took place, particularly on the territory of modern-day Bosnia and Herzegovina and Croatia.

[7][8][9] They were organised and encouraged by Oskar Potiorek, the Austro-Hungarian governor of Bosnia and Herzegovina[10][11][12] who had been responsible for the security of the Archduke and his wife on the day of the assassination.

[14] Ivan Šarić, the assistant of the Roman Catholic Bishop of Bosnia, Josip Štadler, scratched anti-Serb verse anthems in which he described Serbs as "vipers" and "ravening wolves".

The scum of the streets broke into private flats, destroying everything they could lay their hands on and grabbing all the valuables.Later that night, following the brief intervention of ten armed soldiers on horses, order was restored in the city.

That night, an agreement was reached between the provincial government of Bosnia and Herzegovina, which was led by Oskar Potiorek, the city police and Štadler with his assistant Ivan Šarić to eradicate the "subversive elements of this land.

[15] Political leaders disappeared after their speeches, and many fast-moving smaller groups of Croats and Muslims began attacking all property belonging to Sarajevo Serbs that they could reach.

Further, the Austro-Hungarian government issued a decree, which established a special court for Sarajevo authorised to impose the death penalty for acts of murder and violence committed during the riots.

[22] In reports that Potiorek submitted to Vienna on 29 and 30 June, he stated that Serb shops in Sarajevo were completely destroyed and that even upper-class women participated in acts of looting and robbery.

[23] Many residents of Sarajevo applauded to the crowd and watched the events from their windows, and authorities reported that demonstrators enjoyed widespread support by the non-Serb population of the city.

[20] Except from the weak far-right political forces, the other South Slavs in Austria-Hungary, particularly those in Dalmatia and Muslim religious leaders in Bosnia and Herzegovina, either refrained from participating in anti-Serb violence or condemned it, but some of them openly expressed solidarity with the Serb people, including the newspapers of the Party of Rights, the Croat-Serb Coalition, and the Catholic Bishops Alojzije Mišić and Anton Bonaventura Jeglič.

Until early July, it became obvious that the only support for the government's anti-Serb position came from the state-supported reactionaries, and some kind of South Slav solidarity with Serbs existed though still in an undeveloped form.

[9] The Catholic and official press in Sarajevo inflamed riots by publishing hostile anti-Serb pamphlets and rumours that claimed that Serbs carried hidden bombs.

"Према једном руском из- вјештају, само у Сарајеву било је уништено преко хиљаду кућа и радњи.

[...] "Ријеч „демонстрација" овдје нема право значење, и ту филологија не стоји у складу са реалношћу историје; назив- „погром" је адекватнији.