Trinidad police say 18-year-old and 16-year-old threatened to launch a Columbine-style attack at Trinidad High School.
Eighteen-year-old Joel Vasquez and the 16-year-old whose name wasn't released allegedly made threats on an Internet chat room.
They also may have sent e-mails threatening students and the school.
Vasquez is a student at Trinidad, but the juvenile is doing is course work online.
Two students discovered the threats and told a school counselor, who informed police. Trinidad High School was on lockdown Nov. 7 as a precaution.
Police say the 16-year-old said he and Vasquez sent the e-mails as a joke.
Vasquez is being held in Las Animas County Jail on $1,500 bail and the juvenile in being held at Pueblo Youth Detention Center.