UNITED STATES: U.S. congressman John Conyers has introduced new legislation aimed at halting the wave of police killings that have taken the lives of numerous unarmed black men in recent months across the country. UNITED STATES: Protests continue to swell in Baltimore over the killing of Freddy Gray. CHILE: Chile is in a state of emergency after a volcano in the south of the country suddenly erupted. RUSSIA:Argentine president Cristina Fernandez met with her counterpart Vladimir Putin. SOUTH AFRICA: Thousands of demonstrators marched through central Johannesburg to protest against attacks on immigrants.