The Čukur Fountain incident (Serbian: Инцидент на Чукур-чесми/Incident na Čukur-česmi) refers to a series of events in June 1862 in Belgrade, at the time the capital of the Ottoman subject state of Serbia. On 15 June (O.S. 3 June) a group of Ottoman nizami (soldiers) and Serbs quarreled by the Čukur Fountain, ending with a wounded Serb apprentice boy and growing into a conflict between Serbia and the Ottoman Empire (Serbia being under Ottoman suzerainty at that time).