Senate committee questions TikTok in Jan. 6 Capitol attack investigation

The Senate Homeland Security Committee on Tuesday sent a letter to TikTok regarding its Jan. 6 Capitol attack investigation.

The Senate Homeland Security Committee on Tuesday added TikTok to a list of social media companies being scrutinized for their potential involvement in the spread of misinformation related to the Jan. 6 attack on the United States Capitol.

In a letter obtained by ABC News, chairman Gary Peters, D-Mich., wrote to the company seeking additional information on how the app monitors "extremist and conspiracy" content.

"In the lead up to the January 6th attack on the U.S. Capitol, domestic extremists reportedly used TikTok to recruit, organize, and communicate," Peters writes to TikTok CEO Shou Zi Chew. "Since January 6th, domestic extremist groups have used TikTok to continue to spread their messages through content supporting white supremacists, extremists, and terrorist organizations."

The Senate Homeland Security Committee spent months examining security and response failures related to the Jan. 6 attack culminating in a bipartisan report that found failures at every level of government that led to the breach of the Capitol by Trump supporters.