According to the source, the security van was parked for about eight hours, during which its engine was running the whole time.  

The police found two dead bodies in the vehicle that was locked from the inside.

The victims were two security van officers on an errand.  

According to the rules, armored cash transport vehicle operators are not permitted to turn off the engine of the service vehicle.

According to preliminary data, they had parked the security van to rest, but toxic gases had oozed into the vehicle due to technical problems.