FILE - In this Sept. 20, 2011, file photo, Oscar Pistorius runs in a 400 meter race in Warsaw, Poland. Nike has suspended payments to and its contract with paralympian Oscar Pistorius, who is charged with the murder of his girlfriend. (AP Photo/Alik Keplicz, File)

 Johannesburg -International sportswear brand Nike has declined to comment on its future relationship with paralympian Oscar Pistorius following a shooting at his Pretoria home on Thursday.

“This is a police matter and is under investigation,” Nike SA spokeswoman Seruscka Naidoo said.

“From Nike we extend our condolences to everyone affected by this.”

Nike is one of Pistorius's five major sponsors. He has appeared in a number of commercials for the company since 2008.

Pistorius's model girlfriend Reeva Steenkamp was shot dead in his home in Pretoria on Wednesday night.

Pistorius is in police custody and will appear in court on Friday.

Nike's website was down on Thursday afternoon. - Sapa