The nightclub had moved between several Colorado Springs addresses, but had been inside the building raided by federal agencies on Sunday for several months, officials said.

Officers from Immigration and Customs Enforcement are in the middle of processing people who were detained in a raid at what federal officials call an unlicensed nightclub in Colorado Springs over the weekend.

Federal postal inspectors are poised to play a surprising role in immigration enforcement as the Trump administration explores using mail surveillance systems to identify deportation targets. A weekend raid in Colorado Springs highlighted the expanding coalition of federal agencies being deployed for immigration and drug enforcement operations.