In August 1991, Andrew Blake, the head of the British Commercial Union in Istanbul, was killed in a shooting. His killing was claimed by DHKP/C. However, the Turkish wing of Islamic Jihad also claimed the killing. Dev Sol also claimed the assassinations of Hiram Abas (1990), Memduh Ünlütürk, İsmail Selen, Adnan Ersöz and Hulusi Sayın (1991) and Kemal Kayacan (1992), all retired Turkish military or intelligence officers.