George and Amal Clooney have announced a partnership with the Southern Poverty Law Center to combat “bigotry and hate” in the wake of the violence in Charlottesville, Virginia.

The Clooney Foundation for Justice says that it will bestow a grant of $1m to the SPLC in order to assist the civil rights organization in its attempts to combat violent extremism in the US, following the death of counter-protester Heather Heyer at a white supremacist rally in the campus city earlier this month.

“Amal and I wanted to add our voice (and financial assistance) to the ongoing fight for equality,” George Clooney said. “There are no two sides to bigotry and hate.”

“We are proud to support the Southern Poverty Law Center in its efforts to prevent violent extremism in the United States,” the pair added in a statement. “What happened in Charlottesville, and what is happening in communities across our country, demands our collective engagement to stand up to hate.”

SPLC president Richard Cohen welcomed the Clooney Foundation’s contribution at a time when the radical right in America is “energized”.

“Like George and Amal Clooney, we were shocked by the size, ugliness, and ferocity of the white supremacist gathering in Charlottesville,” he said in a statement. “It was a reflection of just how much Trump’s incendiary campaign and presidency have energized the radical right. We are deeply grateful to the Clooney Foundation for standing with us at this critical moment in our country’s fight against hate.”

The donation comes at a time when federal funding to organizations combating rightwing extremism in the US has been frozen by Donald Trump’s administration. Trump himself was roundly criticized for his response to the events in Charlottesville, with the president declaring that activists from “both sides” had been responsible for the violence.

The Clooney Foundation for Justice was established in 2016 to “advance justice in courtrooms, communities and classrooms around the world.” Earlier this month it announced plans to provide $3.25m to help 3,000 Syrian refugee children receive an education in Lebanon. “We don’t want to lose an entire generation because they had the bad luck of being born in the wrong place at the wrong time,” George Clooney said in a statement.