article_snippet.sent: Gunfights broke out and .
article_snippet.sent: cities along the U.S. border, after security forces arrested a . leader of one of the main drug gangs in the area.
article_snippet.sent: National Security Commission head Monte Alejandro Rubido says violence followed the arrest of Jose Tiburcio Hernandez Fuentes and three other suspected members of the group as Hernandez Fuentes and three other suspected members of the group comrades tried to free their comrades.
article_snippet.sent: Reynosa has been one of the most violent cities in Mexico .
article_snippet.sent: over the past year, racked by turf wars among the Gulf Cartel's .
article_snippet.sent: and the Zetas, two drug gangs fighting for control of border .
article_snippet.sent: smuggling routes and crime rackets.
article_snippet.sent: More than 100,000 people have died in gang-related violence .
article_snippet.sent: in Mexico over the past eight years.
article_snippet.sent: although the homicide count has fallen, parts of Mexico . remain mired in violence.
highlights_snippet.sent: Violence broke out in Reynosa on Friday after arrest of 'El Gafe'
  Cartel leader Jose Tiburcio Hernandez Fuentes was captured on Friday .
  