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The CEO of 21st Century Fox has denounced racism and terrorists while expressing concern over President Donald Trump's reaction to the violence in Charlottesville, Virginia.

James Murdoch also told friends in a personal email that he and his wife, Kathryn, will donate $1 million to the Anti-Defamation League.

From left, Lachlan Murdoch, Rupert Murdoch and James Murdoch arrive at St Bride's Church for the celebration ceremony of the wedding of Rupert Murdoch and Jerry Hall in London, Saturday, March 5, 2016. Joel Ryan / Joel Ryan/Invision/AP

Murdoch writes that the events in Charlottesville and Trump's response "concern all of us." He added: "I can't even believe I have to write this: standing up to Nazis is essential; there are no good Nazis. Or Klansmen, or terrorists."

Murdoch is the son of the company's co-executive chairman, Rupert Murdoch, a Trump confidant. The company is parent company of Fox News Channel, which has given friendly coverage to the president.

The email was first reported Thursday by The New York Times.