The CEO of one of America's largest pharmaceutical companies is leaving President Trump's American Manufacturing Council because of how Trump responded to the weekend violence in Charlottesville, Va.

After a woman was killed by a man who sided with pro-white supremacist groups during a clash of protesters, Trump released a statement condemning "hatred," but did not single out white supremacist groups.

Merck CEO Kenneth Frazier, who is black, said Monday morning he would resign from Trumps council, and made it clear he was protesting Trump's reply.

"Our country's strength stems from its diversity and the contributions made by men and women of different faiths, races, sexual orientations and political beliefs," Frazier wrote.

"America's leaders must honor our fundamental values by clearly rejecting expressions of hatred, bigotry and group supremacy, which run counter to the American ideal that all people are created equal," he added.

"As CEO of Merck and as a matter of personal conscience, I feel a responsibility to take a stand against intolerance and extremism," Frazier said.