Cellphone video shows federal agents detaining a landscaper in Evanston.
It happened near Monroe Street and Sherman Avenue.
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ABC7 Chicago blurred the man's face because it's not clear if he's been charged with any crimes.
He said his name is Carlos.
"There were three or four ICE agents on top of one man. After it all ended, I looked over and his landscaping truck was hanging open. His leaf blower was laying on the ground. He was just doing his job. And my guess is they just tackled him," said Aericka, who recorded the video.
U.S. Customs and Border Protection said no one named Carlos was arrested Tuesday in Evanston.
"On October 21st, U.S. Border Patrol conducted a targeted immigration enforcement operation in Evanston, Illinois, that resulted in the arrest of four illegal aliens from Mexico and Venezuela who were breaking our nation's immigration laws. Their criminal histories included previous convictions for domestic battery, larceny, and illegal entry," the Department of Homeland Security said.