Oscar Pistorius appeared to be feeling the pressure of the looming verdicts in his trial when he exploded with anger in response to a journalist who asked how he was doing.

Pistorius, 27, who has been accused or murder, launched a verbal tirade outside the home of his uncle, where the disabled star has been living during proceedings.

The high-profile trial is set to end on Thursday 11 September, when judge Thokozile Masipa delivers her verdict on whether or not Pistorius is guilty of murdering his girlfriend, Reeva Steenkamp.

Confronting reporters as he prepares to learn his fate, Pistorius said: "How can you ask me that? Do you really have the audacity to ask me how I am doing at this point in my life; what I am going through and feeling?"

He added: "I really cannot deal with this right now," reported the Sunday Times.

Pistorius showed signs of the burden of the trial, sporting a heavy beard and appearing generally more dishevelled than during previous public appearances.

The paralympian faces going to jail even if he is found not guilty of murder, due to the potential for a verdict of culpable homicide – which is similar to manslaughter in the UK. He also faces a raft of firearms charges.