The accident occured right at the very end of the video, at around the T+9 minutes mark (about 40 seconds from 3rd stage shutdown).
"T+530 seconds - pitch, yaw, roll are nominal"
then there's a pause, and then
"An off-nominal situation has occured on the launch vehicle. The report ends."
To put things into perspective, the last Proton launch failure linked with the 3rd stage was in August 1990 (foreign object in engine oxidizer feed line). The last time
the RD-0210 series of rocket engines, which are used commonly across the Proton's 2nd and 3rd stages with only slight differences, had failed was during the twin Proton failures in July and October 1999 (*), both caused by foreign particles in the 2nd stage engines' gas turbine pump. Before that a launch failure in May 1993 was caused by propellants contamination causing damage to the 2nd stage engines.
(*)
Ironically those failures at that time caused NASA et al. worrying about whether the Zvezda module of the ISS could be launched successfully and lead to contingency preparations of making use of the Interim Control Module (ICM), one subject of recent interest... 
.
