Brigadier General Hossein Rahimi confirmed the attack on the checkpoint by a group of culprits and the death of three policemen, expressing deep sorrow over the tragic incident.
He added that another police officer was injured in the attack.
General Rahimi said efforts are underway to arrest the armed group, adding that his forces will fight “until the last drop of blood” to defend Iran’s territorial integrity and security.
In recent decades, Iran has been hit by drug trafficking, mainly because of its 936km shared border with Afghanistan, which produces more than 90% of the world’s opium.
According to the UN Office on Drugs and Crime, the Islamic Republic is netting eight times more opium and three times more heroin than all other countries in the world combined.
The war on the drug trade originating from Afghanistan has claimed the lives of nearly 3,700 Iranian police officers over the past three decades.