One of the unidentified sources said that testing at the plant was going well.

The news was first published in People magazine, which quoted an unidentified source.

The information was attributed to unidentified sources in the savings industry.

The magazine published the report, based on an unidentified source, last week.

Only 8 percent of unidentified sources were described in a meaningful fashion.

Q: What is your role in dealing with unidentified sources?

There were comments from an unidentified source on the team, which you don't even know if it was someone real or not.

Nobody, not even the most secret unidentified source, wants to be associated with me.

The Post quoted unidentified sources as saying the quarterback had made his decision and only an 11th-hour change of heart could keep him in college.

As she suspected, the tip came from an unidentified source.