Mexico U.S. updates Mexico travel warning By Gay Nagle Myers / February 08, 2012 Share 1 -- The U.S. State Department updated and expanded its travel warning for Mexico due to growing drug violence and the spread of cartels. The warning, dated Feb. 8, replaces a warning that had been in place since April 22, 2011. The updated warning advises against nonessential travel to areas within 16 Mexican states, including Veracruz and the border areas of Aguacalientes and Zacatecas, and Colima and Michoacan. No advisories are in effect for the state of Quintana Roo (Cancun, Cozumel, Playa del Carmen, Riviera Maya and Tulum), the Riviera Nayarit, Mexico City, Cabo San Lucas, Puerto Vallarta, Guadalajara and Guanajuato (San Miguel de Allende and Leon). Travelers are advised to stay within the tourist areas of Acapulco, Ixtapa, Mazatlan, Monterrey and Zihuantanejo. Follow Gay Nagle Myers @gnmtravelweekly.