An explosion in central Moscow on Saturday killed at least three people and injured 21 others, according to Russian officials. The blast occurred near a summer café on Kudrinskaya Square around 8:10 p.m. local time, the Interior Ministry stated. Officials identified the fatalities as a security guard, a bystander, and a female suspect. The incident involved an improvised explosive device, authorities reported. Traffic near Kudrinskaya Square was temporarily blocked by the Department of Transportation following the explosion.