At least 27 people died in violence in Mexico in two incidents in Monterrey and on the outskirts of Mexico City, officials said. Police said gunmen opened fire on people in a bar late Friday in Monterrey, killing at least 17 and wounding several others, the BBC reported Friday. United Nations High Commissioner Navi Pillay said she is dismayed at the continuing violence in Mexico, where more than 34,000 people have been killed in the past four years in Mexico\'s crackdown on drug gangs. Pillay said she is \"deeply concerned by the very high and still escalating levels of violent crime in some parts the country.\" \"Organized crime, with its brutal actions and methods, threatens the very core of the state and attacks the basic human rights we are struggling so hard to protect,\" Pillay said. The bodies of 10 men and a woman were discovered Friday afternoon on Mexico City\'s eastern outskirts, an official told CNN. The public security official, Javier Garcia, said the victims were handcuffed and bound with tape, then shot. Army troops were called in to secure the site. Mexico\'s state-run Notimex news agency said officials found a woman clinging to life in the carnage. She was taken to a hospital, where she is under guard to protect her.