Non-commissioned officer Ziya Sarpkaya was wounded when armed assailants opened fire on Cumhuriyet Street in the province's ÅŸemdinli district at around 11:30 a.m.
The 27-year-old officer was taken to Åžemdinli State Hospital after bystanders came to his aid. Sarpkaya's condition remains critical.
An operation has been launched to find the perpetrators of the attack.