New Delhi, July 6 -- As Americans across the country came forward to mark the 250th anniversary of the United States' independence on the Fourth of July, celebrations were marred by incidents of shootings that left at least six dead and scores injured in multiple cities.

New York: NBC News on 5 July reported several incidents across the country that dampened the celebrations. In the Coney Island neighborhood of Brooklyn, New York, a masked man opened fire at a family barbecue on the night of 4 July, leaving at least eight injured, including four children. According to New York City police, seven of those injured are expected to survive, while a 21-year-old woman continues to be in critical condition after she was shot in the chest. The g...