SOUTHINGTON — U.S. Immigration and Customs Enforcement agents arrested four undocumented immigrants working at a gas station on Queen Street this week, officials say.ICE officials said in a statement Thursday that agents from its Homeland Security Investigations unit in Hartford, along with Internal Revenue Service Criminal Investigations, conducted a random worksite enforcement outreach at the D-Hand Car Wash in Southington on Monday.ICE said agents administratively arrested "four illegal alien employees from Guatemala," who were in the United States without authorization."Ensuring compliance with federal employment laws is crucial to maintaining a fair and competitive business environment," HSI New England Special Agent in Charge Michael J. Krol said in the release. "Businesses, such as D-Hand, that employ unauthorized workers not only undermine the integrity of our immigration system but also gain an unfair advantage over law-abiding companies. HSI is committed to identifying and addressing these violations to protect both the legal workforce and honest businesses."The arrests come as many people protest ICE agents and President Donald Trump's broader immigration policies in Connecticut and across the nation. More demonstrations are planned for Saturday, with organizers dubbing it "No Kings Day."