Global One (G1)— The prime suspects behind the deadly bombing in a southern Philippine cathedral have turned themselves in.

National police chief Oscar Albayalde announced Feb. 4 Kamah L. Pae and four other members of the Ajang Ajang group surrendered to police “over the weekend.”

Authorities believe Kamah masterminded the twin blasts in Our Lady of Mt. Carmel Cathedral in Jolo that killed 22 people and injured nearly 100 others.

Kamah is reportedly the brother of a slain member of IS-linked group Abu Sayyaf and allegedly part of the Ajang Ajang group — a faction of Abu Sayyaf.

The suspects denied the allegations against them.

Albayalde claimed Kamah conspired with the Indonesian suicide bombers to attack the cathedral in a plan he said took a year to organize.

According to Inquirer, 14 other suspects remain at large.

The suspects now await for the Sulu provincial prosecutor to file formal charges against them.