Jan. 6 panel promises 'previously unseen material' in prime-time hearing on June 9

Rep. Bennie Thompson, D-Miss., and Rep. Liz Cheney, R-Wy., will lead the public hearings for the House select committee investigating the January 6 attack on the Capitol. (Drew Angerer/Getty Images)

The House select committee investigating the Jan. 6 attack on the Capitol released an official notice that it will hold the first hearing on what it has found so far about the deadly siege on Thursday, June 9 in prime time at 8 p.m. ET.

In the notice made late on Thursday, the panel also said witnesses for the hearing would be announced next week.