CNN  — 

After a shooting of two faculty members at a Denver high school Wednesday, authorities have found a male body about two-tenths of a mile from a vehicle connected to the suspect, according to Park County Sheriff Tom McGraw.

“We have not identified the body at this time,” he said Wednesday night.

A shelter-in-place alert for Park County residents near where they found the suspect’s SUV – about 50 miles southwest of Denver – is no longer active, according to the sheriff.

A few hours after the shooting at East High School in Denver, the Denver Police Department tweeted a photo of the suspect and identified him as 17-year-old Austin Lyle. The student was connected to a 2005 red Volvo XC90 with a Colorado license plate. Lyle is wanted for attempted homicide, police said.

“Efforts to locate the suspect are ongoing,” department officials tweeted.

The shooting at East High School was reported at about 9:50 a.m., and police and medical responders arrived on the scene “very quickly” to find two adult men with gunshot wounds, Denver Police Chief Ron Thomas said.

One faculty member is in stable condition, and the other is in critical condition, he said.

The student suspected in the shooting was under a school safety plan in which he was patted down each day, the police chief said. During Wednesday’s search, a handgun was retrieved and several shots were fired in an office area in the front of the school, away from other students and staff, he said.

The student then fled the school. The weapon has not been recovered, Thomas said.

Denver Police Department
Police say 17-year-old Austin Lyle is the suspect in the shooting.

“We are looking for the suspect,” Mayor Michael Hancock said. “We will find that suspect, and we will hold that suspect accountable for his actions this morning in placing everyone in danger and certainly wounding the two staff members who were doing their job and trying to keep everyone safe at the time.”

The mayor asked residents to look out for the student, who was described wearing a hoodie with an astronaut on it. The student should be considered “armed and dangerous and willing to use the weapon, as we learned this morning,” the mayor said.

In addition, another student was taken to a hospital because of an allergic reaction, the mayor said. Paramedics were already in the building for that incident when the shooting occurred and so were able to immediately treat those wounded, Hancock said.

David Zalubowski/AP
Two women hug outisde East High School on Wednesday.

The incident is the 18th shooting this year at an elementary or secondary school in the US in which at least one person was injured or killed, according to the Gun Violence Archive, a non-profit that attempts to log every incident of gun violence in the US in real time. Just this week, one student was shot at a high school parking lot in Dallas, and in Arlington, Texas, a student was killed and another was injured in a shooting outside a high school.

Wednesday also marks two years since the mass shooting at the King Soopers supermarket in Boulder, Colorado, in which 10 people were killed.

Hyoung Chang/The Denver Post/AP
Isabella DeJoseph, 15, center left, embraces her mother Alana as they leave the school.

The school will be out of session for the rest of the week following the shooting, Superintendent Alex Marrero said during a news conference. When students return and for the remainder of the school year, two armed officers would be present on campus, he said.

High school student was shot and killed last month

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This is not the first incident of gun violence to impact East High School this year.

Last month, 16-year-old student Luis Garcia was shot inside a parked car near the school and died weeks later, according to CNN affiliate KMGH. A group of East High students later attended a city council meeting and demanded action on gun violence and school safety, KMGH reported.

“We’re scared,” junior Mateo Tullar said at the meeting. “We don’t want to be at school. We don’t feel safe there. It’s not okay. These things need to change.”

Earlier this month, the Denver East High School chapter of Students Demand Action staged a school walkout and called for immediate action on gun safety. The walkout included a march through the city to the state capitol and featured more than 1,000 students and educators, according to Students Demand Action.

Students at the event wore red and held signs such as “School is was my safe place,” “Our blood, your hands” and “Am I next?,” according to KMGH.

On Wednesday, Rob Gould, president of the Denver Classroom Teachers Association, said, “It is unacceptable that our students and educators are forced to work in environments where we fundamentally cannot ensure their safety from gun violence.”

Amie Baca-Oehlert, president of the Colorado Education Association, said the gun violence problem is an issue that extends beyond East High School and Denver.

“This is a Colorado problem and a national problem. But certain legislators refuse to listen to our students, our educators, and our communities, and instead listen to powerful and well-funded gun lobby groups,” Baca-Oehlert said. “Together, they insist on fighting against common sense gun legislation – like expanding extreme risk protection orders, and raising the age for purchasing a firearm.”

East High School has about 2,500 students across 9th through 12th grades and is the largest and highest-performing comprehensive high school of all Denver Public Schools, according to the school system.

The high school is located in the City Park neighborhood of the Colorado capital and is considered a Denver Historic Landmark for its architecture in the Jacobethan Revival style. The clock tower atop the school is similar in style to Philadelphia’s Independence Hall, the school website notes.

Colorado Gov. Jared Polis issued a statement saying he was praying for the two victims’ recovery.

“Our students should and must be able to attend school without fear for their safety, their parents deserve the peace of mind that their children are safe in classrooms, and teachers should be able to work safely and without harm,” he said.

CNN’s Andy Rose, Steve Almasy, Christina Zdanowicz, Roxanne Garcia and Justin Lear contributed to this report.