The Nigerian Army has arrested one of its soldiers who was found guilty of cybercrime.

The soldier was identified as Lance Corporal Harrisson Friday.

“The hooded soldier hiding behind the mask to commit cybercrime has been apprehended in the ongoing cyber operations in support of Crocodile Smile VI,” the Army said.

The arrest follows the commencement of the Army’s Crocodile Smile exercise, a “yearly event set out to train NA officers and soldiers in its efforts to ensuring the safety and security of Nigeria and her citizens.”

The army said the annual exercise will for the first time have a cyber warfare component.

“This is the first-ever Cyberwarfare exercise to be conducted in the history of the African Armed Forces,” the army said in a statement.

Before Corporal Friday was arrested, a video that showed him speaking up against the use of deadly force to stop ongoing protests against police brutality went viral. In the video, he urged his colleagues not to open fire on protesters as they were unarmed civilians.

The Army dismissed the video as information coming from a ‘fake soldier’ but later announced on Tuesday night that the man in the video was a corporal who has been taken into custody.