Survivors of a Colorado school shooting walked out of a vigil for their slain classmate Wednesday night in protest of politicians and other groups using it as a platform for gun control, a local report said.

The students from STEM High School, where two gunmen killed a student and wounded eight others Tuesday, began yelling from the stands that they “wanted to be heard” after two politicians and pro-gun control advocates addressed the crowd, according to the local NBC affiliate, KUSA.

They then stormed out of the vigil after Democratic Sen. Michael Bennet and Democratic Congressman Jason Crow addressed the crowd, the Denver Post reported.

The kids chanted “Mental health” and hurled expletives at the media, according to the report.

The students returned, and some of them took the microphone, saying their grief was being used for political purposes.

“What has happened at STEM is awful. But it’s not a statistic. We can’t be used as a reason for gun control. We are people, not a statement,” one student said, according to video by KUSA.

Speaking of the lone fatality, 18-year-old Kendrick Castillo, another student added, “We wanted Kendrick to be mourned. We wanted all of you to join us in that mourning, but that was not allowed here. We all walked out. We were not kicked out.”

The vigil was organized by Team Enough, the student branch of gun control group the Brady Campaign.