JOHANNESBURG — Newly released video footage shows Oscar Pistorius participating in a re-enactment of how he says he fatally shot girlfriend Reeva Steenkamp and then carried her out of a toilet cubicle in his home.

Australian broadcaster Channel Seven showed the footage Sunday, a day before the trial resumes. That prompted criticism from a lawyer for the double-amputee athlete who said the re-enactment was made with the help of a U.S.-based company last year as part of the defense team’s trial preparations.

In the video, Pistorius is seen walking on his stumps with an arm outstretched and fist clenched, as though holding a gun. It also shows him carrying a woman. It is unclear where the re-enactment was filmed.

The Paralympian has said he carried Steenkamp after mistakenly shooting her through a closed toilet door because he thought there was an intruder in his home. The prosecution says he intentionally killed the 29-year-old model after they argued on Feb. 14, 2013.