The Department of Justice and FBI are investigating TikTok and its parent company ByteDance, including previously disclosed allegations that the company’s employees spied on journalists, a law enforcement official with knowledge of the matter said Friday.

The investigation is being conducted by Justice Department prosecutors in Washington and in the Eastern District of Virginia, along with the FBI, the officials said.

The DOJ and FBI declined to comment.

In response, a ByteDance spokesperson told NBC, “We have strongly condemned the actions of the individuals found to have been involved, and they are no longer employed at ByteDance. Our internal investigation is still ongoing, and we will cooperate with any official investigations when brought to us.”