South Africa's state prosecutors will appeal the culpable homicide conviction and five-year jail sentence handed down last week on Olympic and Paralympic track star Oscar Pistorius, the National Prosecuting Authority (NPA) said on Monday.

Pistorius was convicted of culpable homicide last month for the shooting of Reeva Steenkamp, a 29-year-old law graduate and model, at his luxury Pretoria home.

"Oscar Pistorius judgement, NPA will be appealing both the conviction and sentence," NPA spokesman Nathi Mncube said on his Twitter feed.

Prosecutors failed to prove murder after the athlete said he fired in the mistaken belief an intruder was hiding behind the door, a defence that struck a chord with many people in a country with one of the world's highest rates of violent crime.

However, Judge Thokozile Masipa's decision drew criticism from some legal experts who said she had made an error in her interpretation of the legal concept of 'dolus eventualis', whereby a person is held accountable for the foreseeable consequences of their actions.

In South Africa, an appeal by the state against a verdict can only be made on a matter of law, and does not involve a retrial or the submission of any new evidence.

Source: Reuters