This comes after the DHS itself announced plans to reinforce security at Immigration and Customs Enforcement facilities throughout the country after the deadly attack on a Dallas field office this week.

In the case of these alleged threats, the Department of Homeland Security, which cited "reliable" information, assured that criminal networks have given explicit instructions to sympathizers based in the US to monitor and attack agents of the Immigration and Customs Enforcement Service (ICE) and the Customs and Border Protection Office (CBP).

Despite this, the DHS now insisted that, as an example in Chicago, gang members affiliated with groups like the Latin Kings have deployed “observers” on rooftops to track the movements of ICE and CBP in real time, transmitting coordinates of the raids, especially in predominantly Hispanic neighborhoods like Pilsen and Little Village.

“This surveillance has allowed ambushes and interruptions during routine security actions, including recent raids as part of Operation Midway Blitz (in Chicago),” explained the Department.

The groups are also allegedly offering rewards of up to $2,000 for collecting or revealing personal information of agents (including photos and family data). Higher amounts would be offered for assaulting the agents.

For her part, the US Attorney General, Pam Bondi,reported Tuesday that Facebook removed a group where Chicagoans shared information about when and where ICE agents were spotted in the city.