The FBI and Minnesota agents are investigating the death of a black man in Minneapolis police custody after video from a bystander showed a white officer kneeling on his neck

His death, which occurred Monday night after a struggle with police officers, was under investigation by the FBI and state agents. Minneapolis Police Chief Medaria Arradondo, speaking to reporters Tuesday morning, was asked about the use of the knee on the man’s neck during the arrest.

“We clearly have policies in place regarding placing someone under control,” Arradondo said, stating that taking a look at what happened and how those policies apply “will be part of the full investigation we’ll do internally.”