White House National Security Adviser H.R. McMaster called the violence in Charlottesville, Virginia, Saturday “terrorism.”

Speaking to ABC’s “This Week,” McMaster said “anytime that you commit an attack against people to incite fear, it is terrorism.”

One person died during the white supremacist rally after a car crashed through a crowd of protesters, killing one and injuring nearly 20 others.

McMaster said it was “a criminal act against fellow Americans. A criminal act that may have been motivated — and we’ll see what’s turned up in this investigation — by this hatred and bigotry, which I mentioned we have to extinguish in our nation.”