BOSTON (AP) – Two people were arrested Sunday at an event to commemorate the liberation of Nazi concentration camps, where white supremacist protesters clashed with a crowd angry at their presence.

Shireen Chambers, 36, of Dorchester, and Jerome Higins, 25, of Everett, were both charged with affray and disturbing the peace, police Officer John Boyle said.

Chambers, who is white, is accused of striking Higins, who is black, in the face during a brief confrontation across the street from Faneuil Hall, where the Holocaust remembrance event was being held.

Higins then allegedly spit in Chambers’ face and hit her with a sign, police said.

Chambers was pulled from the crowd and dragged away by police as she yelled racial epithets. She was not in the designated holding area where the white supremacists staged their protest.

Ten to 15 members of the Arkansas-based White Revolution arrived in downtown Boston about an hour after the event started.

The event commemorated the 60th anniversary of liberation of the Nazi concentration camps and the 10th anniversary of the New England Holocaust Memorial in Boston.

The group was escorted by hundreds of police officers on foot, motorcycle and horseback, to a holding area across from the event.

The officers, many in riot gear, formed a barricade between the protesters and about 100 people who angrily shouted at them to leave Boston.

At one point, the crowd opposing the white supremacists charged, causing police to use their batons to keep them at bay.

Boyle said at least one officer was injured while attempting to arrest Chambers.