The San Mateo Police Department contributed officers to a regional anti-trafficking operation that identified 53 human trafficking survivors and arrested 25 suspected traffickers during FIFA World Cup matches at Levi's Stadium, the Santa Clara County District Attorney's Office announced July 24.

Eleven of the survivors were minors.

The operation spanned all six World Cup matches held at the Santa Clara stadium, with a task force of law enforcement agencies, prosecutors, social workers and advocacy organizations from 11 Bay Area counties conducting 66 separate operations. Officers also cited 41 people suspected of soliciting sex from trafficking survivors.

The task force was led by the Santa Clara County Human Trafficking Task Force and the Northern California Regional Intelligence Center. San Mateo was one of seven cities that contributed police departments to the effort, alongside San Jose, San Francisco, Mountain View, Hayward, Campbell and Union City. The FBI, U.S. Attorney's Office, Department of State Diplomatic Security Service and California Department of Corrections and Rehabilitation also assisted.

In one operation, undercover investigators sent decoy messages to suspected traffickers, leading to 13 arrests at various hotels on suspicion of felony pandering.

Santa Clara County District Attorney Jeff Rosen said in a statement that the region declared "our intolerance for the illegal trafficking of human beings" and that survivors are being provided "support and services so that they can go on to live a life free of cruel criminal exploitation."

All 53 identified survivors were connected with community organizations including Community Solutions and YWCA Golden Gate Silicon Valley. They were offered confidential individualized help, safety planning, emergency supplies and temporary housing.

The World Cup effort built on a similar operation during the Super Bowl at Levi's Stadium in February, which covered a single game and yielded 29 arrests and 73 identified survivors, including 10 minors. The World Cup task force spanned six matches over several weeks.

Nationally, the U.S. Department of Homeland Security reported more than 673 arrests on human-trafficking charges during the World Cup and said 61 adults and 13 minors were rescued across the country.

The San Mateo Police Department has not issued its own statement about the operation. The DA's announcement did not specify how many San Mateo officers participated or what specific operations they led.