Seven people were injured in a shooting during a large gathering of young people in the American city of Methuen, Massachusetts, the Associated Press reported, quoted by BTA, citing authorities.
There is no further information about the dead or their possible number.
The shooting began before 02:00 local time after hundreds of people gathered for a pop-up party organized on social media. Pop-up parties are impromptu mass gatherings that take place without warning or prior agreement with the authorities.
The oldest victim is 22 years old, and the others are in their teens. Two are in critical condition.
The authorities refuse to comment, AP says. No arrests were made and no weapons were seized.