The Nuevo Leon state government says authorities found images of the scene on the smartphone of one of the officers, who is 23, while trying to determine now the Mexican media got photographs of the secured site, including images of body parts and personal documents.
Investigators searched the homes of the officers who secured the crash site and found victims' belongings in two. The government said Thursday it then arrested the 23-year-old and another officer who is 24.
The officers belong to a new state police force meant to be more effective and less corrupt than its predecessors.
Copyright 2012 The Associated Press.