An explosion at an armament factory in northwest Türkiye left at least 12 dead and four injured.

The blast occurred in the capsule production facility of the factory located in the province of Balikesir, according to the state-run Anadolu Agency.

Balikesir Governor Ismail Ustaoglu said the explosion collapsed the capsule production building and that the surrounding buildings sustained minor damage.

Justice Minister Yilmaz Tunc wrote on social media platform X that four public prosecutors have been assigned to investigate the cause of the explosion.

"An investigation has been launched by the Balıkesir Chief Public Prosecutor's Office regarding the explosion that occurred in the section where the capsules were produced in the explosives factory in the Karesi district of Balıkesir province," Tunc said.

"Four public prosecutors have been assigned under the coordination of 1 deputy chief public prosecutor."

Tunc said the investigation would be carried out "comprehensively and meticulously".

"I wish God's mercy to our citizens who lost their lives in the explosion and a speedy recovery to our injured citizens."