( CNN ) -- Unknown gunmen fired into a crowd of people outside an elementary school in Ciudad Juarez , Mexico , Wednesday afternoon , killing one person and injuring four others , a Juarez municipal police spokesman said . `` A group of unknown gunmen were chasing down a target who ran to the Ricardo Flores Magon elementary school . He was with another woman , and they were being chased . The gunmen caught up to them outside of the school and fired into the crowd without caring about the people there , '' municipal police spokesman Adrian Sanchez said . School was in session at the time of the shooting at 2 p.m. local time ( 3 p.m . ET ) , but none of the children were injured , Sanchez said . The students at the school are in the 10-to-11-year-old range , he said . It was their first week of classes . Journalists at the scene reported children witnessed the shooting . Teachers at the school did not want to talk to reporters , saying they were still in shock . Three women and one man were injured , including the woman who was accompanying the man targeted , Sanchez said . The women who were shot were waiting for their children outside of the school . There was no indication any of the victims were involved or connected to drug trafficking , but that was part of the municipal police investigation , Sanchez said . The suspects are still on the loose . The gunmen were seen traveling in a Volkswagen Jetta carrying AK-47s , witnesses to the incident told CNN . Drug traffickers in Mexico have a reputation for prefering AK-47s . Earlier this week , the Chihuahua state government said that 225 women have been murdered in Juarez this year . Ciudad Juarez is across the border from El Paso , Texas , and has been the scene of some of Mexico 's worst violence in recent years . CNN Stringer Arturo Chacon contributed to this report .
NEW : Witnesses tell CNN they saw gunmen carry AK-47s , travel in a Jetta . Man shot , killed in front of students at school in Ciudad Juarez ; 4 others injured . The Mexican government has said it will investigate the shooting and is working with U.S. officials to determine what happened. No students were injured in the attack ; suspects still on the loose .