An explosion at an ammunition depot in western Turkey has killed 25 soldiers and injured four others.

Forestry and Water Minister Veysel Eroglu said the blast occurred late Wednesday in Afyonkarahisar at a section of the depot where hand grenades were stored. The soldiers' remains were discovered early Thursday after a fire caused by the explosion was extinguished.

Eroglu ruled out a terrorist attack and said the cause was accidental.

The private NTV television said the dead have not been identified yet and their remains will be sent to a military hospital in Ankara for DNA testing.