Schools are closed for a second day in Wray as authorities investigate a possible threat that was made using the social media app Yik Yak.
Two more students have been arrested in connection with a threat investigation at Weld Central High School near Keenesburg.
Three students have been arrested in connection with an alleged threat against a northern Colorado high school.
Columbine High School and others in the area were put on lockout Thursday morning due to threats.
The Jefferson County School District on Monday let parents know about a possible threat at Bear Creek High School.
Federal agents tracked down a Denver native and arrested him in Iowa after allegations surfaced that he threatened to kill three teachers at his former school in Steamboat Springs.
It was back to normal at East High School on Monday after students were let out early on Friday due to what police called a credible threat against the school.
Denver’s East High School will be back open on Monday following what police called a credible threat against the school on Friday.
Police say they are taking a report of a threat against East High School seriously.
Denver police would like the public’s help identifying a man who may have information about a threat towards Denver Public Schools.