Five workers were killed in a blast at an explosives factory near Ankara on Saturday, Turkey's Defence Ministry said.
The incident occurred at the MKE Rocket and Explosives Factory, about 40 kilometres from the capital, the ministry said.
Defence Minister Yasar Guler said two prosecutors were appointed by the Ankara Chief Public Prosecutor's Office to investigate.
Developments would be shared with the public, he added.
He expressed his condolences to the workers' families.
Ankara governor Vasip Sahin told reporters there were no more workers waiting to be rescued or in hospital.
The facility where the early-morning blast took place is owned by Turkey's Machinery and Chemical Industry Corporation (MKE).