A friend of Gulsen Bahadir, a victim of Tuesday's attack on Ataturk airport, mourns at her flag-draped coffin during her funeral ceremony in Istanbul, Turkey, June 29, 2016. [Photo/Agencies]

On Wednesday afternoon, the counterterrorism teams launched an operation against two addresses in Istanbul over the attacks and seized coded organizational documents, the Sabah daily reported.

Meanwhile, the public prosecutor's office in Istanbul's district of Bakirkoy revealed that three suicide bombers arrived at Ataturk Airport by the same taxi.

Two started shooting at the crowd with a Kalashnikov and a Glock rifle after forcing through the X-ray security check point at the entrance of the international terminal, while the third one went upstairs, the Hurriyet daily said.

Before they entered, they had clashes with security officials and got wounded, the daily added.

The trio detonated their explosives, and the explosions left deep scars at the airport, most visibly three large areas of receded ceiling and broken glass walls both inside and outside the arrivals section of the international terminal.

Airport employees on the morning shift were on the scene examining the damages. Some lost their colleagues and declined to make comments to reporters.

The airport resumed business on Wednesday morning following hours of mess and chaos and the suspension of all flights.