A desperate call for help from a home in suburban Minneapolis has turned deadly for two police officers and a first responder who were shot dead, according to officials.

Two police officers and a first responder have been shot and killed while responding to a domestic abuse call in a suburb of Minneapolis, according to a police union.

Protesters took to the streets for a fourth consecutive night in the city of Minneapolis over the shooting death of a black man by members of a US Marshals task force.

Protesters have faced off with police in Minneapolis over the fatal shooting of a man by members of a US marshals task force.

The Minnesota State Patrol arrested a CNN reporter reporting live on television early Friday morning while covering the Minneapolis protests, without giving any reason, and led him and three crew members away in handcuffs.

George Floyd's lethal treatment, captured on a phone, is just the latest in a shameful litany that shows how very racist America can be.