6 November 1957
(Los Angeles Mirror-News, California)
Quote from the article:
“The Pentagon is ‘greatly concerned’ about the many reports of unidentified flying objects flitting about the country, and is ‘directing a very thorough investigation,’ Col. Dean Hess Air Force public information officer here, said this afternoon.”
The Los Angeles Mirror-News was owned by the Los Angeles Times, according to the Wikipedia article, Los Angeles Times.
The Pentagon (2008), Arlington, Virginia