Wisconsin's governor put the National Guard on standby Sunday in case of another outbreak of violence in Milwaukee, after a deadly police shooting touched off a night of arson and rock-throwing in a mostly black neighborhood.

US - National guard on standby, curfew imposed after police killing and following unrest

Wisconsin's governor put the National Guard on standby Sunday in case of another outbreak of violence in Milwaukee, after a deadly police shooting touched off a night of arson and rock-throwing in a mostly black neighborhood.