"Today I pick up you're not sure a lot... Is everything OK?" - Oscar trial

After receiving several "I'm not sure" answers from murder-accused Oscar Pistorius on Monday, prosecutor Gerrie Nel checked on him.

"Today I pick up you're not sure a lot... Is everything OK?" Nel asked the paralympian.

"Yes, my lady," Pistorius said, directing his answer to presiding Judge Thokozile Masipa.

Nel presented a picture of Pistorius's bedroom to the court.

He turned back to the statement of a police officer who said that when he had entered Pistorius's bedroom, he noticed that a fan was placed close to the sliding door.

In the picture, however, the fan was placed next to the bed.

Nel asked Pistorius why his lawyer Barry Roux, SC, had not disputed this fact.

"I'm not sure why, my lady," Pistorius said.

"The only reason is because it was never your version," Nel said in response.

Pistorius is on trial for the murder of his girlfriend Reeva Steenkamp.

He shot her through a locked bathroom door at his Pretoria home on Valentine's Day last year.

He claims to have mistaken her for an intruder.

Pistorius claims he went out of the bedroom to fetch the fans and returned to hear a noise in the bathroom.

He claimed to have then told Steenkamp to call the police, thinking she was still in the bed.

He then proceeded to the bathroom where he fired four shots through the toilet door, killing her.

The State argues it was premeditated murder.