Mexico City, Mexico (CNN) -- Mexican officials have identified 13 people killed Sunday night in a Tijuana drug rehabilitation center, the state-run news agency said Monday.
Four heavily armed men stormed into the Centro de Rehabilitacion El Camino and opened fire, the Notimex news agency said. The reported ages of those killed ranged from 19 to 56 years old.
The assailants escaped in a vehicle, the news agency said.