Six people have been shot dead in Turkey’s eastern Kars province. The gunman was an office worker who then committed suicide. Local media reports suggest it was a revenge attack over a professional dispute.

Kars Governor Eyup Tepe said the Statistics Institute (TUIK) employee had come to the building and had shot dead six staff including the regional manager with a Glock pistol. One other employee escaped with light injuries.

The gunman had been getting treatment for mental health issues. The incident is not thought to be terrorism-related.