Boston Mayor Michelle Wu was blasted again by federal officials for her criticism of immigration enforcement in the city, this time for her “sickening” remarks comparing the mask-wearing ICE authorities to a prominent neo-Nazi group.

Boston Mayor Michelle Wu drew the ire of the Department of Homeland Security after she criticized U.S. Immigration and Customs Enforcement agents for wearing masks. Wu told local outlet WCVB on Wednesday that she didn’t know of “any police department that routinely wears masks” like ICE agents do.