YORK, Pa.?Witnesses reported minor confrontations in the streets on Saturday as police kept hundreds of demonstrators at bay during a rally by white supremacists in a city still feeling the effects of deadly race riots more than 30 years ago.

Matthew Hale, leader of the white supremacist group World Church of the Creator, spoke to about 70 supporters inside a library while police officers in riot gear, some on horseback, separated shouting groups of his supporters and anti-racist protesters.

“We seek the advancement of white people, our people, without any apologies, any compromise, any groveling before anybody,” Hale told supporters and spectators inside the library.

Witnesses reported seeing car windows broken and minor confrontations in the streets throughout the afternoon. Witnesses reported a clash between the two sides before Hale arrived, although police did not confirm it.