The Istanbul governor's office said in a statement released late on Tuesday that a committee would probe the deportation in January of alleged Muslim Brotherhood member Mohammed Abdel Hafiz.
Turkey has launched an investigation into eight police officers over the deportation of an Egyptian national back to Egypt, where he could face the death penalty.
The Istanbul governor's office said in a statement released late on Tuesday that a committee would probe the deportation in January of alleged Muslim Brotherhood member Mohammed Abdel Hafiz. Eight officers at Istanbul's Ataturk Airport passport control have been suspended pending the investigation, it said.
Turkish newspaper Milli Gazete said Abdel Hafiz had arrived at Ataturk Airport on January 16 from Somalia. He was detained at the airport and deported on January 18 despite requesting political asylum, the paper said.
Abdel Hafiz' case is the first known extradition of an alleged Muslim Brotherhood member from Turkey to Egypt.
Officials in Egypt say Abdel Hafiz was sentenced to death in absentia in July 2017 following his conviction along with others for the 2015 assassination of Egypt's chief prosecutor. He is likely to face a new trial over the same accusations.
Hisham Barakat was the most senior government official killed by militants since the 2013 military ouster of President Mohamed Morsi, Egypt's first democratically elected president whose one-year rule proved was cut short by another coup by then-General and now president Abdel Fatah al Sisi, a head of military intelligence under former dictator Hosni Mubarak.
Ties between Egypt and Turkey have been tense since Morsi's ouster. Turkish President Recep Tayyip Erdogan has repeatedly criticised the Egyptian government and has called for Morsi's release from detention.
Egypt accuses Turkey of becoming a safe haven for Muslim Brotherhood members who fled Egypt.
Following the military coup, the group was banned in Egypt, but many members have been welcomed in Turkey, where they have run satellite television and radio stations.