The Justice Department on Thursday filed a lawsuit against New York over a Democrat-backed state law that prohibits federal immigration agents from arresting individuals at or near courthouses — a state law the Trump administration says blatantly obstructs immigration enforcement.

The law bans federal immigration officials from arresting people who are coming and going from courthouses or in court for proceedings unless they have a warrant signed by a judge.

The Trump Administration sued New York over a law that restricts federal immigration authorities from making arrests at state courthouses, ratcheting up tensions over enforcement actions against undocumented immigrants that have sparked protests across the country.