<p>Mexican President Andres Manuel Lopez Obrador on Monday condemned a shooting spree that he said had killed 14 innocent victims over the weekend in the crime-plagued border state of Tamaulipas.</p>.<p>"Everything indicates that it wasn't a confrontation" between rival gangs, Lopez Obrador told reporters following the massacre on Saturday by gunmen traveling in vehicles in the city of Reynosa.</p>.<p>"It is a cowardly attack that took the lives of innocent people," he said, adding that he had instructed the attorney general's office to lead the investigation into the murders.</p>.<p>Five alleged perpetrators were killed by the security forces, authorities said.</p>.<p>The victims included 19-year-old Fernando Ruiz Flores, who was working in the street to install drainage with his stepfather, his sister Olga Ruiz said.</p>.<p>"From what my stepfather Jesus says, they killed my brother in cold blood," she told AFP by telephone.</p>.<p>The gunmen arrived in pick-up trucks and "just like that, they took out their weapons and started shooting," she said.</p>.<p>Reynosa, on the border with the United States, has been shaken by escalating turf wars between rival drug cartels in recent years.</p>.<p>It is one of the most violent regions in a country where more than 300,000 people have been murdered since the government deployed the military in the war on drugs in 2006.</p>.<p>Most of the killings are linked to fighting between gangs, according to the authorities.</p>
<p>Mexican President Andres Manuel Lopez Obrador on Monday condemned a shooting spree that he said had killed 14 innocent victims over the weekend in the crime-plagued border state of Tamaulipas.</p>.<p>"Everything indicates that it wasn't a confrontation" between rival gangs, Lopez Obrador told reporters following the massacre on Saturday by gunmen traveling in vehicles in the city of Reynosa.</p>.<p>"It is a cowardly attack that took the lives of innocent people," he said, adding that he had instructed the attorney general's office to lead the investigation into the murders.</p>.<p>Five alleged perpetrators were killed by the security forces, authorities said.</p>.<p>The victims included 19-year-old Fernando Ruiz Flores, who was working in the street to install drainage with his stepfather, his sister Olga Ruiz said.</p>.<p>"From what my stepfather Jesus says, they killed my brother in cold blood," she told AFP by telephone.</p>.<p>The gunmen arrived in pick-up trucks and "just like that, they took out their weapons and started shooting," she said.</p>.<p>Reynosa, on the border with the United States, has been shaken by escalating turf wars between rival drug cartels in recent years.</p>.<p>It is one of the most violent regions in a country where more than 300,000 people have been murdered since the government deployed the military in the war on drugs in 2006.</p>.<p>Most of the killings are linked to fighting between gangs, according to the authorities.</p>