"The Guardian" newspaper mentioned that in a YouTube video, a convoy of SUV's filled with gunmen and pickups packed with marines were seen in a chase through the streets of Matamoros, Tamaulipas. And although there wasn't any visible confrontation between the two, the intensity of the situation was clear through the background noises of grenade explosions and automatic gunfire. A news video from Televisa, also on YouTube, shows images from the confrontations of that day. Moreover, several bystanders also recorded the shootouts.