The explosion rocked the missile and explosives factory in Ankara's Elmadag district, according to the report. A fire brigade and an ambulance were dispatched to the scene.
"An explosion occurred at the MKE missile factory in the Elmadag district of Ankara. The explosion killed five of our workers. A judicial and administrative investigation has been launched," the Turkish Defense Ministry said.
After receiving the information about the explosion, Turkish Defense Minister Yasar Guler canceled his tour to the southern province of Hatay on the border with Syria and is now on his way to Ankara, the local newspaper reported.
The factory hit by the explosion belongs to the Mechanical and Chemical Industry Corporation (MKE). The MKE is a state-owned company that manufactures weapons and equipment for the Turkish armed forces.