Social conservative Matt Barber has labeled the people responsible for vandalizing a Chicago-area Christian school “gay terrorists.”

The Christian Liberty Academy in Arlington Heights was damaged during an early morning attack on Saturday. Police said vandals broke a window and a glass door panel.

The attack came hours before anti-gay activist Scott Lively was to be honored by the group Americans for Truth About Homosexuality with its American Truth Teller award at their annual banquet.

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

“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,” the statement read in part.

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.

Barber, the vice president of Liberty Counsel Action, told “I have a message to the gay terrorists that perpetrated this crime: Your terrorist tactics have failed, and you will not succeed in silencing God's truth.”

Americans For Truth About Homosexuality's Peter LaBarbera called homosexuality “an abomination, it's destructive, it's wicked” in condemning the attacks.

“My question for Christians who don't want to get involved is: You're telling me that in a civil, free society where you have homosexual activists making six-figures – some making over $300,000 running groups which are wholly devoted to promoting sin – you're telling me in a free society we're not allowed to oppose them or should oppose them in the public square? If we don't, politics abhors a void and evil will rush in and that's what we're seeing,” he said.