WASHINGTON (AP) — Facebook is fighting a court order that blocks the social media giant from letting users know when law enforcement investigators ask to search their online information, particularly their political affiliations and comments.

Major technology companies and civil liberties groups have joined Facebook in the case, which resembles legal challenges throughout the country from technology companies that oppose how the government seeks access to internet data in emails or social media accounts during criminal investigations, The Washington Post reported .

Facebook is arguing in the D...