PARK RIDGE, Ill. (AP) — Immigration enforcement officials have arrested almost 550 people as part of an operation in the Chicago area that launched a little less than two weeks ago, the Department of Homeland Security said Friday.

The updated figure came hours after a senior immigration official revealed in an interview with The Associated Press that more than 400 people had been arrested in the operation so far. The figures offer an early gauge of what is shaping up as a major enforcement effort that comes after similar operations were launched in Los Angeles and Washington, D.C.

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