On 3 January 2001, at approximately 13:50 local time, a man later identified as Gültekin Koç, a member of the Revolutionary People's Liberation Party/Front (DHKP/C), entered a police station in the Şişli district of Istanbul. Koç presented himself as a businessman to gain entry to the building and proceeded toward the office of Şişli District Chief Constable Selçuk Tanrıverdi.
Naci Canan Tuncer, who served as Tanrıverdi's bodyguard, became suspicious of the visitor and questioned him about his reason for wanting to see the district chief constable. Koç reportedly panicked in response to this questioning and detonated explosives he was carrying.
The blast killed both Tuncer and Koç. Seven other people were injured in the explosion, including three police officers and four civilians; two of the injured were described as being in critical condition.
The attack has been attributed to the Revolutionary People's Liberation Party/Front, a Marxist-Leninist militant organization, based on Koç's stated membership.