In the United States three people have been found dead at a house at Denver in Colorado according to local media reports.
It is reported that among the dead were two children believed to be under the age of 10.
Other reports suggested a third child was taken to hospital in a critical condition.
Emergency services responded just before 0700 local time.
A police spokesman at the scene said they are not looking for anyone else in connection with the shootings, adding that there was no indication that a gunman was on the loose in Denver.