A student who authorities say opened fire at his Colorado high school, wounding two classmates and then turning the gun on himself, has died, according to the local sheriff's office.

Axar.az reports, citing ABC news, the gunfire at Evergreen High School broke out at about 12:24 p.m., according to the Jefferson County Sheriff's Office.

Three students were taken to the hospital in critical condition following the gunfire, including the suspected shooter, who was injured by a self-inflicted gunshot wound, the sheriff's office said.

The sheriff's office confirmed the suspect died in a post on social media Wednesday evening.

Authorities have not publicly released his identity.

One of the wounded students remained in critical condition and another was listed in stable condition as of Wednesday evening, according to law enforcement officials.

The sheriff's office said the suspect was armed with a revolver handgun.

"This is the scariest thing you'd think could ever happen," said sheriff's office spokesperson Jacki Kelley at an earlier news conference.

Kelley said she could not provide any other details about the suspected shooter, including the suspect's age or gender.