The office of Washington state Auditor Troy Kelley is turning over documents in response to a subpoena from the U.S. Department of Justice.

Auditor spokesman Thomas Shapley said Thursday the documents were in response to a March 6 subpoena. Shapley says he does not know what documents were sought.

According to Tacoma police, agents with the U.S. Department of Treasury spent about five hours searching Kelley's home early this week. He is out of state on vacation and issued a statement saying he had no knowledge of any investigation. His schedule indicates he'll be back in the office on Monday.

The U.S. attorney's office in Seattle has declined to confirm or deny any investigation.