[9] A type A4 bomb has been reported as being the cause of the explosion and the "Terror and Organised Crime Unit" (Turkish: Terör ve Organize Suçlar) has taken over the investigation.
[10] The explosion shattered windows of the shopping centre and of nearby buildings creating havoc.
[11] The Ankara bombing came as more than 35 world leaders, including the U.S. President, were in Istanbul for a NATO summit that began on Monday, which left tensions high as numerous other incidents have occurred in the run-up to the meeting.
[12] It also heightened political tensions between the secular and non-secular parties of Turkey, as both fight for public support and leadership of the nation.
The police has three competing theories: Collaborator "Ayşe" is known to have visited a hospital briefly after the bombing and is currently at large.