A Chicago-area Christian school was vandalized on Saturday, hours before anti-gay Scott Lively was to be honored.

The Chicago Sun-Times reported that the Christian Liberty Academy in Arlington Heights was damaged during an early morning attack. Police said vandals broke a window and a glass door panel.

A group going by the pseudonym of “PISSED” claimed responsibility in a statement.

“[W]e put two chunks of concrete through the glass windows and doors … We did this because at 6PM today they will be hosting an event organized by the homophobic hate group Americans for Truth About Homosexuality that will be presenting an award to Scott Lively.”

“These chunks of concrete were thrown through these windows and doors for two reasons: to show that there is a consequence for hatred and homophobia in our community and to directly cause this event to shut down. If this event is not shut down, and the homophobic day trainings do not end, the Christian Liberty Academy will continue to be under constant attack.”

Lively, the founder of Abiding Truth Ministries and the president of Defend the Family International, has argued that gay rights are dangerous and has admitted that he traveled to Uganda to give testimony in favor of an anti-gay measure which includes a death penalty provision for people who repeatedly engage in gay sex and those who are HIV-positive.

At the annual banquet, Lively was presented with the group's American Truth Teller award.