Disregard for SOPs reason for soldiers' killing?

Disregard for standard operating procedures while patrolling along the Line of Control (LoC) has been cited as one of the main reasons for the killing of five Indian soldiers on the LoC by Pakistani special forces in Poonch on August 6.
An internal investigation being carried out by the local formation there has found that the soldiers were taking rest when they were ambushed by the Pakistani Border Action Team (BAT), which had to fire not more than a dozen bullets at close ranges to accomplish their task, sources said here.
The Army headquarters, however, said investigations are still in progress and it would share the details of the incident only once it has established the exact sequence of events and the lapses.

The five soldiers, from 21 Bihar Regiment and 14 Maratha Light Infantry unit, were killed when they were patrolling the area on August 6.
One soldier of the six-member patrol had gone to relieve himself and was not injured in the ambush. However, he was admitted to hospital for being in a state of shock.
Army sources said no formal court of inquiry has been ordered by the force into the incident which took place in the 93 Brigade area in Poonch.
The Army Chief had reprimanded the formation commanders in the area for allowing two successful and sensational operations by Pakistan Army troops inside Indian territory in a span of eight months.