Julio Cesar Chavez Jr. was arrested Wednesday in Studio City, California, by Immigration and Customs Enforcement officials, and the boxer is being processed for an expedited removal from the U.S. back to Mexico for overstaying his visa and lying on a green card application.

The Department of Homeland Security also stated in a press release that Chavez has an active arrest warrant in Mexico for his “involvement in organized crime and trafficking firearms, ammunition, and explosives.”

DHS said Chavez is “believed to be an affiliate of the Sinaloa Cartel,” a designated foreign terrorist organization.

Chavez’s attorney Michael Goldstein said federal agents arrested him while the 39-year-old was riding a scooter in front of his home in Studio City. Footage released Thursday showed Chavez being cooperative as he was being arrested.

“The current allegations are outrageous and simply another headline to terrorize the community,” Goldstein said, per Associated Press.

According to AP, Mexico’s Attorney General’s Office said that they’ve already initiated extradition procedures.

Goldstein told AP that he was not aware where Chavez was being detained as of Thursday morning. He is due to appear with Chavez in court Monday related to gun possession charges from 2024, and to provide updates on his progress in a substance abuse program.

Chavez faced Jake Paul at Honda Center in Anaheim on June 28 and lost by unanimous decision.

DHS said it was determined Chavez should be arrested June 27, but did not reveal why it waited several days to arrest him.

Immigration-related arrests have ramped up across Southern California in recent weeks. The developments have resulted in violent protests, which have prompted the federal deployment of National Guard troops and U.S. Marines to downtown Los Angeles.