Four members of the far-right Proud Boys organization were found guilty of seditious conspiracy on Thursday in connection with the Jan. 6 attack on the U.S. Capitol.

Enrique Tarrio, Joseph Biggs, Ethan Nordean, Dominic Pezzola and Zachary Rehl each faced nine counts. All but Pezzola were found guilty on the rare charge of seditious conspiracy under a Civil War-era statute. Tarrio, Biggs, Nordean and Rehl were also found guilty of conspiracy to obstruct an official proceeding.

The jury reached only a partial verdict and remains split on whether Pezzola is guilty of seditious conspiracy. U.S. District Judge Timothy J. Kelly has instructed jurors to continue deliberating on multiple outstanding charges.