The Department of Homeland Security warned on Tuesday that Mexican cartels are coordinating with “domestic extremist groups” in the United States to place bounties on Immigration and Customs Enforcement (ICE) agents and Customs and Border Protection (CBP) agents.

In a Tuesday press release, the Department of Homeland Security announced that the agency has obtained “credible intelligence indicating that Mexican criminals, in coordination with domestic extremist groups have placed targeted bounties on U.S. Immigration and Customs Enforcement (ICE) and U.S. Customs and Border Protection (CBP) personnel.”

The press release explained that Mexican criminal networks have provided “explicit instructions” to individuals in the United States, including Chicago street gangs, to “monitor, harass, and assassinate federal agents.”

The Department of Homeland Security warned that cartels have spread a “tiered bounty system” to “incentivize violence” against ICE and CBP officials. According to Tuesday’s press release, cartels have offered $2,000 for the doxxing of federal agents or the gathering of intelligence, between $5,000 and $10,000 for non-lethal assaults or kidnapping of ICE and CBP officials, and up to $50,000 for the assassination of high-ranking federal officials.

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The Department of Homeland Security also noted that gang members linked to the Latin Kings and other criminal groups have deployed “spotters” on rooftops in Chicago with radio communications and firearms to track ICE and CBP movements and share their coordinates.

“These individuals track ICE and CBP movements in real-time, relaying coordinates,” the Department of Homeland Security stated. “This surveillance has enabled ambushes and disruptions during routine enforcement actions, including recent raids under Operation Midway Blitz.”

The Department of Homeland Security noted that Antifa groups in Chicago and Portland have attempted to “shield cartel-linked individuals from deportation” by providing logistical support, including “pre-staged protest supplies, doxxing of agent identities, and on-the-ground interference.”

Addressing the coordination between the Mexican criminal networks and individuals in the United States, Secretary of Homeland Security Kristi Noem said, “These criminal networks are not just resisting the rule of law, they are waging an organized campaign of terror against the brave men and women who protect our borders and communities.”

“Our agents are facing ambushes, drone surveillance, and death threats, all because they dare to enforce the laws passed by Congress,” Noem added. “We will not back down from these threats, and every criminal, terrorist, and illegal alien will face American justice.”