(CBS News)-- Federal officials announced Sunday the decision to perform their own autopsy on the body of the 18-year-old who was shot and killed by a police officer in Ferguson, Mo., last week.
The state of Missouri has already performed an autopsy on the corpse of Michael Brown, the black teen who was unarmed and shot several times by a white officer. The results of that autopsy have not been released yet.
In a statement, the Department of Justice said: "Due to the extraordinary circumstances involved in this case and at the request of the Brown family, Attorney General Holder has instructed Justice Department officials to arrange for an additional autopsy to be performed by a federal medical examiner. This independent examination will take place as soon as possible."
Justice Department officials said they will still take the results of the state-performed autopsy "into account in the course of their investigation."
Federal officials had previously announced they were looking into possible civil rights violations in the case.
The incident in question has been a tale of two sides so far. Local law enforcement said Brown was shot after a scuffle with the officer, and evenreleased highly controversial surveillance videothey claim shows Brown robbing a convenience store shortly before he was killed.
Locals have said Brown was gunned down with his hands raised after asking the officer not to shoot him.
Tensions over the case have led to several nights of violent unrest in the suburban St. Louis community.