China News Service, June 20 (ABC) and Fox News reported that a 15-year-old boy was killed in a shooting incident in Washington, the capital of the United States, on the evening of the 19th local time.
Three other people were injured, including a policeman.
According to reports, the shooting occurred near the intersection of 14th and U Streets in Northwest Washington.
Police said the incident took place between 18:30 and 20:30 local time, and the Moechella concert was being held in the area at the time of the incident, which was held "without permission".
Metropolitan Police Chief Robert Conti said the Metropolitan Police had earlier reported another incident at the concert in which a fight occurred.
Shortly after, there was a second incident where "people started to disperse" and some were "stomped on".
Conti also said police seized several illegal firearms, at least one with an extended magazine.
He said the firearm used by the injured officer had not been recovered.
Conti added, "When there is a large gathering in a densely populated area, as long as there is one person with a gun, the environment becomes dangerous."
In addition, the police also said that the injured have been taken to a local hospital.
On the 19th, there were many shooting incidents in the United States, causing many casualties.
One person was killed and two others were injured in a shooting outside a restaurant in Queens, New York, in the early morning of the same day.
On the same day, a shooting occurred on a street in Las Vegas, killing one and injuring one.