In Baltimore, Maryland, police arrested 65 protesters during an anti-police brutality march Saturday. The protesters attempted to shut down Interstate 83. Protests have erupted in dozens of cities following the killings by police of two African-American men, Alton Sterling in Baton Rouge, Louisiana, and Philando Castile in Falcon Heights, Minnesota. Baltimore is currently awaiting the decision in the trial of a police officer charged in the death of Freddie Gray. Gray died of injuries sustained in police custody last year, sparking nationwide demonstrations.