OMAHA, Neb. (AP) — The American Civil Liberties Union of Nebraska says a state probation office in Omaha has stopped allowing federal immigration agents from profiling probation clients at the office.

The ACLU says it sent a warning letter to the probation office last month after receiving complaints from attorneys. The attorneys said their Latino clients who met with probation officers were often subjected to questioning, without a warrant, by federal Immigration and Customs Enforcement agents.

The ACLU says that the probation office informed it on Jan. 23 that it will now require federal immigration agents to have a warrant to interact with probation office clients.

Neither the probation office nor an Immigration and Customs Enforcement spokesman immediately responded to questions Tuesday about the practice.