In talking with various agencies, the bishop said, Catholic officials are emphasizing that "the church does not oppose justice. All hardened criminals that are a danger to society should be picked up." But, he continued, "many who were picked up are not hardened criminals but for the last decades have been great citizens."

In a statement, ICE officials would not confirm the number taken into custody but said those arrested had criminal convictions, including for murder, rape, assault, burglary, weapons violations and drug trafficking.

WJBK-TV reported that an ICE spokesperson said that "each of these individuals received full and fair immigration proceedings, after which a federal immigration judge found them ineligible for any form of relief under U.S. law and ordered them removed."

The official also said the action was the result of recent negotiations between the U.S. and Iraq, which had agreed "to take back Iraqi nationals convicted of crimes."

A bill passed by the U.S. House June 6 "to protect Christians," Bishop Kalabat said, "goes against this very thing." He was referring to the bipartisan Iraq and Syria Genocide Emergency Relief and Accountability Act that would provide humanitarian assistance to Christian and other religious minorities suffering genocide at the hands of Islamic State militants.

The bishop acknowledged it "will take a lot of effort" to work on behalf of those who have been taken into custody, "but acting in disrespectful ways in front of the federal building (will) only bring harm and not good."

"We understand the pain that many members of our community are going through but emotional outbursts will not bring change," he said, and urged them to get official statements from the eparchy about efforts being made on behalf of the detainees. He added: "Let's pray for God's blessings to rain down on us."