Minneapolis, MN (KROC-AM News) - The US Attorney for Minnesota and the FBI office in Minneapolis say they are conducting a "robust" criminal investigation into the death of George Floyd.

A statement issued this morning by Erica McDonald and FBI Special Agent Ranier Drolshagen says the investigation will determine whether the actions by Minneapolis police officers leading up to the 46-year-old black man's death Monday evening violated federal law. The Department of Justice Civil Rights Division is also participating in the investigation.

The federal authorities are asking for cooperation from all witnesses who believe they have relevant information. They are also urging calm as investigators gather the facts surrounding Floyd's death. He died after he was taken into custody by Minneapolis police and was held to the ground for several minutes by an officer who was pressing a knee against Floyd's neck.

The four officers involved in the incident were fired by the Minneapolis Police Department the next day. The officer-involved death sparked violent protests in Minnesota's largest city that included widespread looting, fires, and a possibly connected to a homicide Wednesday night.

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