CHICAGO (WLS) -- Immigration groups are demanding the release of a Chicago mother detained by U.S. Immigration and Customs Enforcement this week while on a regular check-in with the immigration office.

Several white ICE vans carrying detainees pulled out of the Broadview Immigration Processing Center Friday afternoon. What is not known is where they are going and if Gladis Yolanda Chavez Pineda is in one. The longtime Chicago resident was one of several people detained by ICE this week during a routine check-in in the South Loop.

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"We have attended check-ins with her before. We have entered the office before. We didn't even get a chance to give her a hug. They took her back there. They wouldn't let her back out," said Nadia Singh,

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