It was more like five minutes on his version
Mrs Vdm said she heard a woman's voice speaking loudly
By Pumza Fihlani BBC News, Pretoria
Well into day two of the trial, and a second witness, and another neighbour of Oscar Pistorius, has told the court about a commotion she heard in the early hours of the morning of the day Reeva Steenkamp was killed.
It is still early days, but this the state's argument that Mr Pistorius and his girlfriend of three months had had a terrible row before she died - a version of events the athlete denies.
"It seemed like somebody was involved in a fight," said Ms Van Der Merwe, who lives in the same gated Pretoria housing estate as the Paralympic athlete. "People were talking in loud voices."
The argument woke her at about 01:56 local time (23:56 GMT) and lasted about an hour. After that, she heard four loud sounds in succession.