South African prosecutors say they are going to appeal for a longer sentence for Paralympian Oscar Pistorius.

He was jailed for six years earlier this month for murdering his girlfriend Reeva Steenkamp.

Prosecutors are arguing that the sentence is disproportionate to the crime, and too lenient.

The disgraced athlete could have faced a life sentence after the Supreme Court of Appeal overturned his manslaughter conviction and found him guilty of murder.

However, his sentence is considerably less than the minimum jail term of 15 years for murder recommended under South African law.

Pistorius could also be eligible for parole in three years.