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 . The dead were identified as : Irineo Godinez Garcia , 47 ; Antonio Mesa Contreras , 56 ; Bernabe Alvarez Piceno , 35 ; Jose Lopez Sauceda , 28 ; Fabian Gonzalez Zea , 19 ; Juan Daniel Casi Esquer , 32 ; Wilson Ramírez Pena , 42 ; Joaquin García Hernandez , 39 ; Jorge Palacio Goya , 37 ; Pedro Villegas , 30 ; Juan Roberto Sanchez Ortega , 30 ; Edwin Vargas Avila , 33 ; and Salvador Bustos , 30 . The slayings occurred one day after armed men burst into a house party in Ciudad Juarez and opened fire , killing 14 people and wounding 14 , Notimex said . The ages of those killed in Juarez ranged from 14 to 30 , Notimex said . Children as young as 7 and 11 were among the injured , the agency reported . The attack in Juarez was reminiscent of an incident in January , when drug cartel gunmen stormed a house party and killed 15 people . Most of the victims were youths who had no ties to organized crime . Investigators said the January shooting was a case of mistaken identity caused by bad intelligence . It sparked widespread outrage in the violent border city , including calls for Mexican President Felipe Calderon to resign . The Tijuana slayings also were similar to previous attacks carried out at drug rehab centers . A massacre at a Juarez rehab facility in early June left 19 dead . Twenty-seven people were killed in September 2009 in two attacks at separate drug facilities in Ciudad Juarez , the bloodiest city in the nation . Officials said the previous attacks were done by drug gangs killing members of other gangs . At least 2,500 people have been reported killed in drug violence this year in Ciudad Juarez . Nationwide , more than 28,000 people have died in drug-related violence since December 2006 , when Calderon took office and stepped up efforts to fight organized crime and narcotrafficking cartels . Much of the violence in Ciudad Juarez and other areas of northern Mexico is due to the drug cartels fighting for control of lucrative routes into the United States , authorities have said .
NEW : The attack is similar to previous killings at drug rehab centers . Victims in Tijuana shootings ranged in age from 19 to 56 years old . Four men opened fire inside a rehab center , fled in a vehicle , state-run news agency reports . Sunday night 's killings in Tijuana came one day after 14 people were killed at a Juarez party .