India, Feb. 24 -- The United States Department of State issued a security alert as violence gripped several parts of Mexico following the killing of drug kingpin Nemesio "El Mencho" Oseguera Cervantes on Sunday. At least 25 members of Mexico's National Guard were killed in Jalisco state in subsequent clashes with criminal groups. 30 cartel members were also killed in the violence, said Mexico Security Secretary Omar Garcia Harfuch.

The alert, issued by the US Department of State Consulates Affairs, urged US citizens in affected areas to shelter in place.

"Due to ongoing security operations & related road blockages & criminal activity, U.S. citizens in a number of locations in Mexico are urged to shelter in place, as U.S. government staf...