Three shot dead in Mexico City tourist hotspot, 'mariachi' gunmen flee

Evidence markers are seen at a crime scene where three men were gunned down by unknown assailants at an intersection on the edge of tourist Plaza Garibaldi in Mexico City, Mexico September 14, 2018. REUTERS/Henry Romero

MEXICO CITY (Reuters) - Gunmen with rifles and pistols killed three people on Friday and injured at least seven in a tourist plaza in downtown Mexico City, police said, adding that they were chasing three men dressed as mariachi musicians who fled on motorbikes.

After years of keeping a lid on the worst violent crime that has plagued Mexico, its capital has seen homicides surge since 2014 to record levels, presenting a major challenge to an incoming city government that has vowed a clean-up.