A Facebook official says the company has found no evidence to back up allegations in a media report that Facebook contractors suppressed stories of interest to conservatives in its "Trending" section.
Facebook vice president of search Tom Stocky wrote in a post, "There are rigorous guidelines in place for the review team to ensure consistency and neutrality," adding that the guidelines don't permit political perspectives to be suppressed or one viewpoint or outlet to be prioritised over another".
Stocky also said an allegation that the site artificially forced the Black Lives Matter movement to trend is "untrue".
Facebook was responding to a report from Gawker's Gizmodo blog on Monday on claims from unnamed former Facebook contractors who worked as news curators for the company.
