Colorado school shooting

One student is dead and eight others injured after two of their classmates opened fire at a suburban Denver STEM school on Tuesday.

Superintendent Thomas S. Tucker said in a letter to parents that STEM School Highlands Ranch, a public charter school with more than 1,850 students in kindergarten through 12th grade, will be closed for the remainder of the week, according to USA Today.

Douglas County Sheriff Tony Spurlock said the suspects opened fire in two separate classrooms. Police responded before 2 p.m., arriving quickly because there is a law enforcement substation nearby.

The two suspects were arrested after a struggle but were not injured, Spurlock said. Deputies recovered at least one handgun from the suspects, he added.

All the shooting victims are students ages 15 and older. The male student who died was 18 years old, the sheriff tweeted Tuesday.

As of Tuesday evening, two of the injured were in serious condition, two were in stable condition and one was in good condition, area hospitals said. Three of the injured have been discharged, Littleton Adventist Hospital spokeswoman Wendy Forbes told USA TODAY.