Oscar Pistorius has arrived at Pretoria's Kgosi Mampuru prison, where he will begin a maximum five-year sentence for killing his girlfriend Reeva Steenkamp.
"He is already accommodated at Kgosi Mampuru," correctional services spokesman Manelisi Wolela said.
The South African Paralympian star sprinter has been sentenced to five years in prison for killing his girlfriend, in the climax of his sensational trial.
The 27-year-old was led straight down to the cells after the sentence was read out on Tuesday by Judge Thokozile Masipa in a final court hearing watched around the world.
"Count one, culpable homicide: the sentence imposed is five years," Masipa told Pistorius.
The double amputee known as the Blade Runner for his speed on his prosthetic legs, killed 29-year-old Reeva Steenkamp in the early hours of Valentine's Day last year.
He was also sentenced to three years, suspended for five years, for accidentally firing a pistol under a table at a restaurant in Johannesburg in January 2013.
Pistorius stood stock-still in the dock as he was sentenced in the Pretoria courtroom, veins bulging in his forehead and his jaw muscles clenched.
Lawyers said, however, that Pistorius will probably not serve the full term for the offence of culpable homicide, equivalent to manslaughter, and perhaps as little as 10 months.
Pistorius had testified that he shot Steenkamp, a model and law graduate, four times through a locked bathroom door at his upmarket Pretoria home after he mistakenly believed she was an intruder.
Prosecutors had argued that he murdered her in a fit of rage after an argument.
As the court adjourned, Pistorius turned to look at the public gallery, then briefly took the hands of his family members before being led by police down stairs from the dock to the cells.
Steenkamp's family welcomed the sentence, the climax of a trial that began in March in the South African capital, but was repeatedly adjourned.
Steenkamp's ailing father Barry said he was "very glad" the trial was over and a lawyer for the family said the sentence was "welcome".
The Steenkamps' lawyer, Dup de Bruyn, said the sentence will likely be served as two years in prison and three years under house arrest.
Pistorius' uncle on Tuesday said the sprinter's family accepted the court's judgment.
"The court has now handed down judgment and sentence, and we accept the judgment," said Arnold Pistorius in a statement outside court.
"Oscar will embrace this opportunity to pay back to society.
"This has been an incredibly hard and painful process for everyone involved, the Steenkamp family, our family and Oscar," he said.
"We are all emotionally drained," he said.
"The case that was set down for three weeks originally has been dragged out for seven months."
A member of Pistorius' legal team, Roxanne Adams said he would likely serve a "sixth" of the five-year term - 10 months - before being transferred to house arrest.
Neither side indicated immediately whether they would appeal against either the September verdict or Tuesday's sentence.
State prosecution spokesman Nathi Mncube said they had been disappointed with the conviction for culpable homicide rather than murder.
But he added: "We have not made up our minds whether we are going to appeal or not."
Adams said the defence had "no comment" on whether or not it will appeal.
Masipa said she wanted to find a balance between retribution, deterrence and rehabilitation, dismissing defence claims that the disabled athlete would face particular suffering in prison.
"It would be a sad day for this country if an impression were to be created that there was one law for the poor and disadvantaged and another for the rich and famous," said Masipa.
She also weighed the ability of Pistorius to cope with incarceration given his physical disability.
"Yes, the accused is vulnerable, but he also has excellent coping skills," she said.
The gold medal-winning athlete made history by becoming the first double amputee Paralympian to compete against able-bodied athletes at the 2012 London Olympics, inspiring millions with his story.
Discussing the gravity of Pistorius's crime, the judge said he had been guilty of "gross negligence".
"Using a lethal weapon, a loaded firearm, the accused fired not one, but four shots into the door," said Masipa.
