LONDON: Oscar Pistorius (pic) captured his first gold medal of the London Paralympics, helping South Africa win the 400metre relay in a world-record time at  Olympic Stadium this morning.

The double amputee, known as "Blade Runner," anchored the team home in a time of 41.78 seconds. South Africa set the previous record at 42.50 seconds  in February.

It is Pistorius' fifth Paralympic gold across three Games. He won the 200m in Athens in 2004 and the 100m, 200m and 400m in Beijing in 2008.

He has already won a silver in the 200m in London after being edged by Alan Oliveira of Brazil in Sunday's final.

Pistorius will go for gold in the 100m today, and will defend his 400 title Saturday.

- mD