Oscar Pistorius has been jailed for five years for shooting his girlfriend Reeva Steenkamp dead on Valentine's Day last year.

The amputee athlete, known as the Blade Runner, stood staring straight ahead as Judge Thokozile Masipa announced his sentence for killing the model.

Pistorius, 27, was also given three years suspended for five years for a firearms offence.

The judge handed down an immediate prison term for the charge of culpable homicide, saying she believed a non-custodial sentence would "send the wrong message to the community".

Pistorius killed Ms Steenkamp, 29, in the early hours of February 14 2013 when he shot her through the bathroom door at his home in Pretoria. He insisted he thought he was firing at an intruder.

A member of Pistorius's legal team claimed after the hearing that he is expected to serve a sixth of the sentence - around 10 months - in jail before being held under house arrest.

The courtroom was packed for the culmination of a case that has attracted intense scrutiny around the world. Interest was heightened by a ruling allowing some parts to be screened live on television.

Police officers stood guard in the aisles, while Ms Steenkamp's family watched from the public gallery.

After a summary of the evidence in the case and related legal issues, the judge said: "Having regard to the circumstances of the matter, I am of the view that a non-custodial sentence would send the wrong message to the community.

"On the other hand, a long sentence would also not be appropriate either as it would lack the element of mercy."

Asking Pistorius to stand, she said: "The following... is what I consider to be a sentence that is fair and just, both to society and to the accused."

Earlier, she described Ms Steenkamp as "vivacious and full of life". The court heard her parents June and Barry in particular were "not coping very well without their daughter".

Judge Masipa said: "The loss of life cannot be reversed. Nothing I say or do today can reverse what happened on February 14 2013 to the deceased and to her family.

"Hopefully, this judgment on sentence shall provide some sort of closure for the family and all concerned so that they can move on with their lives."

Earlier she said: "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."

She said that during the course of the trial she had a feeling of unease as she listened to "one witness after another" place an "over-emphasis on the accused's vulnerability".

She said that while Pistorius is vulnerable, he has "excellent coping skills", and pointed out that he went on to compete against able-bodied athletes, but she said: "For some reason, that picture remains obscured in the background."

Judge Masipa criticised evidence given during the trial which questioned the ability of prisons in South Africa to cope with Pistorius's disability.

She said the expert's evidence "did not inspire any confidence in this court", and described it as "slapdash" and "disappointing".

The judge said that while the Department of Correctional Services was not perfect, it had made strides and was "moving with the times".

She said: "If the accused in this matter were to be given a custodial sentence, it would not be the first time that the Correctional Services Department was confronted with an inmate with disabilities."

She said she was satisfied that the department was equipped to deal with inmates with special needs and said it was "coping reasonably well".

She said Pistorius would not present the department with an "insurmountable challenge".

Judge Masipa gave the example of a pregnant woman belonging to one of the "most vulnerable groups of people", and said a pregnant woman would be sentenced to jail if such a sentence was warranted.

The judge said South Africa had "long moved on" from an era of "an eye for an eye" justice.

Pistorius had "helped change the general public's perceptions of disabled people", Judge Masipa told the court in Pretoria.

She added: "His impact on others was worldwide ... but it ought to be put into perspective."

The Olympic and Paralympic athlete, who had his lower legs amputated as a baby, fired his 9mm pistol four times through the closed toilet door at his luxury home.

Last month the judge dismissed claims that he intentionally killed Ms Steenkamp, saying Pistorius could not be convicted of either pre-meditated or second-degree murder.

But he was convicted of culpable homicide - the South African equivalent of the UK's manslaughter charge - as well as a gun charge relating to an incident in a restaurant in January last year.

Referring to the night of Ms Steenkamp's death, the judge said today that on his own account Pistorius thought there was an intruder in the toilet cubicle.

"Using a lethal weapon, a loaded firearm, the accused fired not one but four shots into the toilet door," she said.

She said mitigating factors included Pistorius's apparent remorse and his attempt to apologise to his victim's family.

As she left court, the victim's mother, June Steenkamp, was asked by reporters about suggestions that Pistorius would not serve the full five years in prison.

She said: "It doesn't matter, he's going to pay something."

Asked if she thought justice had been served, she said: "Yes."