In one day, 6 schools in Washington, USA received bomb threats, teachers and students were evacuated

　　China News Service, February 10. According to US media reports, Washington, D.C. police said on the 9th that six high schools and charter schools in the city were closed due to a potential bomb threat that day, and teachers and students were evacuated.

　　Among them, Dunbar High School was bombed for two consecutive days. Douglas Emhoff, husband of US Vice President Harris, who went to the school to participate in the African American Memorial Month activities on the 8th, was also evacuated due to the bomb threat.

　　Washington, D.C. police said that as of the afternoon of the 9th local time, the security alert had been lifted, and no hazardous substances were found in the schools that received the threat.

　　Previously, African-American traditional universities in many parts of the United States have also received bomb threats.

February is African American Heritage Month, with a series of observances across the country.