About 300 of the 680 people detained in Wednesday's federal Immigration and Customs Enforcement raid were released the same day, officials said.

Approximately 30 people detained Wednesday were released at the same site they were detained on "humanitarian grounds," according to a press release issued Thursday by Mike Hurst, the U.S. attorney for the Southern District of Mississippi, and ICE.

Another 270 were released after being processed by Homeland Security Investigations on Wednesday. Those 270 were taken back to where they were initially detained, the release stated.

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According to the Associated Press, ICE officials said 18 juveniles were among the released workers, including a 14-year-old.

Wednesday afternoon, ICE spokesperson Bryan Cox said everyone taken into custody and detained was asked if they had children. Cox said at the time that everyone would be processed but "not everyone is going to be (permanently) detained."

"You are going to have persons released," he said. "ICE makes custody determination on a case-by-case basis based on the totality of their circumstances."

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According to the Thursday release, "all those detained yesterday were asked when they arrived at the processing center whether they had any children who were at school or child care and needed to be picked up."

Agents "made cellphones available" so those detained could make child care arrangements, the release stated.

If a couple was detained with minor children at home, one of them would be released on "humanitarian grounds." Single parents with minor children at home also were released.

"Based on these procedures, it is believed that all children were with at least one of their parents as of last night," the release stated.

At no point did ICE contact the Mississippi Department of Child Protection Services.

The raids happened at seven food processing plants across Mississippi Wednesday, beginning at 7:45 a.m., in Bay Springs, Carthage, Canton, Morton, Pelahatchie and Sebastapol, Cox said.

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Contact Sarah Fowler at 601-961-7303 or sfowler@gannett.com. Follow her on Facebook and Twitter.

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