 According to Ekrem Vlora's memories, Riza Bey was the involved in the Attack against Mehmed Ali Pasha, performed by the Gjakova Committee of the League of Prizren, which resulted in the assassination of Abdullah Pasha Dreni-Kyeziu (his distant cousin), and Marshal Mehmed Ali Pasha.The Ottoman marshal had been sent to overview the cession of Plav-Gusinje to the Principality of Montenegro, which had caused the ensuing Battle of Novšiće.On September 5, 1878, Riza Bey approached the house of Abdullah Pasha and gave him a 24-hour ultimatum to leave the area and get back to Istanbul.