Nemesio Rubén Oseguera Cervantes, known as “El Mencho,” headed the cartel, which is a major source of drugs coming to Chicago and elsewhere in the United States, according to the DEA.

By Raul Cortes, Aida Pelaez-Fernandez and Sarah Morland MEXICO CITY, Feb 23 (Reuters) - A tip about drug lord Nemesio Oseguera's romantic liaisons led Mexican authorities to the cartel leader's hideout in a small town of Jalisco state where he was killed,

Chicagoans visiting Mexico described the tense moments they spent hiding or running away from men carrying guns. Others with roots in western Mexico said the violence hits close to home.

Meanwhile, heavily armed Mexican security forces kept up their battle with cartel gunmen following the killing that sparked a surge in violence and put the country on edge. Cartel fighters continued to block roads as smoke rose on the outskirts of the town in the state of Jalisco.

RIU Hotels & Resorts, which operates 23 hotels in Mexico, eased the restriction a day after the death of a notorious cartel boss.

U.S. citizens in Mexico are being advised to shelter in place after a cartel leader was killed, setting off violence in several regions.

Locals and tourists took shelter across Mexico amid a wave of retaliatory violence after government forces killed a powerful cartel leader, with gunmen blocking highways and torching cars. The death of Nemesio Rubén Oseguera Cervantes,

Airlines have diverted flights from two Mexican cities amid Mexican army action against a powerful drug cartel on Sunday.