PORTLAND –– More than 170 businesses in and around Portland closed for the day Friday to protest ICE operations in Maine and nationwide.

The movement was called Service Industry Strike. The group Portland Strike Now stated 174 businesses from Biddeford to Damariscotta took part. The group is associated with the Maine Democratic Socialists of America. On its website, the organization stated that the event included “businesses, restaurants and bars” taking part.

It was exciting,” said Harry Sultan, the owner of Another Round coffee shop on Congress Street in Portland, one of the participating businesses. “You know, it started with a few and then seeing the lists of businesses grow and grow and grow, it was very cool to see that the movement was catching on.”

Many who weren’t working took part in a rally in Monument Square.

Starting on Jan. 21, the U.S. Department of Homeland Security announced it was beginning “Operation Catch of the Day” to target “the worst of the worst criminal illegal aliens who have terrorized communities.”

The operation, which officially lasted about a week, sparked protests that continued even after Republican Sen. Susan Collins announced on Thursday that the operation had come to an end. The business protest happened the next day.

About 200 people in Maine were detained, but little information has been released regarding the identities of those detained and the reasons why.

On Friday, Gov. Janet Mills and Maine Attorney General Aaron Frey wrote to Homeland Security demanding that the Trump Administration release that information.