"We will give a crushing response to the outlaw groups for their terrorist attack on the Iranian border guards in Mirjaveh," General Ashtari said on Friday.
The police commander called on the Iranian officials to urge Pakistan to immediately identify and confront the terrorist groups responsible for killing the country's border guards.
On Wednesday, nine Iranian border guards were killed and two others injured in clashes near the Iranian town of Mirjaveh in Sistan and Balouchestan province. The Jeish ul-Adl terrorist group in a statement claimed responsibility for the attack.
On Thursday, Iranian President Hassan Rouhani expressed his condolences over the death of the Iranian border guards, urging rapid steps to identify and punish the perpetrators.
“I ask the government of friendly and neighboring Pakistan, which this blind and cowardly act has taken place on their side of border, to take a responsible step and identify, introduce and punish members of the terrorist and Takfiri groups, who are behind this crime, as soon as possible."
President Rouhani also ordered Iran's Supreme National Security Council and Ministry of Foreign Affairs to follow up on this issue with diligence so as to prevent repetition of such “unmanly acts” of terrorism.