The U.S. city of Baltimore, Maryland will ask the United States Justice Department to investigate the city's police department. Mayor Stephanie Rawlings-Blake says the investigation will look into police patterns and practices. She says investigators will try to learn if Baltimore police violate federal laws about searches and seizures.

Last month a 25-year-old black man died of a spinal cord injury he received in police detention. Freddie Gray’s death led to peaceful protests and riots in the city.