Unlike previous shootings at American schools, this attack was on very young school children, an elementary school in Connecticut.
Sky News are now reporting twelve dead. Earlier reports put the figures of fatalities as much lower.
Reports are saying the School principal was killed.
ITN @itnUPDATE: More about the multiple reports that more than a 12 people are dead in the shooting
More than 12 people, including children, have been killed in a shooting at a Connecticut school, an official has told ABC News.