BALIKESIR, TURKIYE - DECEMBER 24: A view of the factory producing explosives in Karesi district of Balikesir, Turkiye, where an explosion and collapse have reportedly resulted in 12 deaths and 5 injuries on December 24, 2024. According to Balikesir Governor Ismail Ustaoglu, the blast occurred in the capsule production section of the factory, located in the rural Kavakli neighborhood of Karesi district, for reasons yet to be determined. The explosion caused the building to collapse, he added. (Photo by Fatih Capkin/Anadolu via Getty Images)
CNN  — 

Eleven people were killed in a blast at an explosives and ammunition factory in the village of Kavakli in the Karesi district of Balikesir province in northwest Turkey on Tuesday, according to the country’s interior minister Ali Yerlikaya, who said that an investigation had been launched.

Local authorities ruled out the possibility of sabotage, CNN affiliate CNN Turk reported.

Seven others were injured in the explosion, which also caused a building to collapse.

Turkish President Recep Tayyip Erdogan said on X that he was “deeply saddened” by the news.

“I pray to God to have mercy on my deceased brothers, (to) offer my condolences to their families, and wish a speedy recovery to our injured,” Erdogan added. “My condolences to Balikesir and our nation.”

Turkish Justice Minister Yilmaz Tunc said on X that a committee of experts, including chemical, mechanical, occupational safety and geophysical engineers, had been assigned to determine the cause of the explosion.

Authorities are working to confirm how many people were inside the building at the time, CNN Turk reported.

A screenshot of a video shows the blast at an explosives and ammunition factory in Turkey's northwest Balikesir province on Tuesday.

The interior ministry, who had initially reported that 12 people had died, revised the death count to 11 later Tuesday, saying the first report was announced mistakenly.

This story has been updated.

CNN’s Kathy Rose O’Brien contributed reporting.