A group of 20 Janissary merchants traveled to the Zaporozhian Sich for trade. They stopped by the Belozerka River to graze their horses. Six of them went to Kamiane Point to buy food, where they became drunk. Two of them, Kara Mehmed and Mustafa, attacked, killed, and robbed a merchant Cossack named Fedor, who was traveling with a cargo of salt. Among the group of four involved in the incident were Mehmed from the 69th Cemaat, Apti from the 19th Cemaat, Said Mehmet from the 91st Cemaat, and Aslan. The case became known, and Kara Mehmed and Mustafa were imprisoned in the Zaporozhian Sich..