VIDEO MIX: Gun battles engulf Culiacan streets forcing Mexico's National Guard to stand down
In what appears to have been a routine patrol, 30 members of Mexico's National Guard were caught off guard and ambushed from an unsuspecting local house. After repelling the initial attack, authorities soon discovered Ovidio Guzmán López, son of "El Chapo" and suspected co-leader of the Sinaloa Cartel, hiding inside the home. Chaos quickly ensued as gunmen blocked streets with burning vehicles. The scenes that unfolded were reminiscent of a war zone.