Speaking to reporters in Tehran on Sunday, the police chief said the country’s Interior Ministry, security services, police and the Foreign Ministry are pursuing the case, expressing the hope that investigations would yield results.
Iran's Intelligence Ministry announced last week that it found, identified and returned home the body of Jamshid Danaeifar following extensive intelligence operations that also led to the arrest of some people involved in the murder of the sergeant.
Jamshid Danaeifar, along with four other Iranian border guards, was kidnapped on February 6, 2014, by a Pakistani-based terrorist group named the Jaish-ul-Adl.
They were abducted in Jakigour region in Iran's southeastern province of Sistan and Balouchestan and taken to Pakistan.
Four of the five abductees were released and returned home after being held hostage for two months.
On March 23, 2014, Jaish-ul-Adl announced in a Twitter message that it had killed Danaeifar but the terrorist group provided no evidence to confirm its claim. The four released border guards said at the time that Danaeifar had been separated from them for nearly a month.