In the northern Mexican city of Reynosa, government soldiers have found themselves caught in the middle of a turf war between two rival drug gangs.

The city has been totally infiltrated by drug gangs - and the military is finding it increasingly difficult to fight them as every movement by the army is closely followed by the gangs.

Al Jazeera's Mariana Sanchez accompanied the military on one of their patrols and filed this exclusive report.

Source: Al Jazeera