Russian firm pleads not guilty to meddling

A Russian company charged as part of a conspiracy to meddle in the 2016 presidential election has pleaded not guilty in federal court in Washington.

The plea was the first by any of the Russian defendants charged by special counsel Robert Mueller's team. The company, Concord Management and Consulting LLC, is accused of providing funding for a huge Russian troll farm that directed a covert social media campaign aimed in part at helping Donald Trump defeat Hillary Clinton.

Concord is controlled by Yevgeny Prigozhin, a wealthy businessman with ties to Russian President Vladimir Putin.

Prigozhin and 12 other Russians are also charged in the indictment. They have yet to appear in court to face the charges. The US has also imposed sanctions on them.