A white supremacist hate group marched across the State House lawn carrying swastika flags and fought with passersby in Concord Saturday, according to several eyewitnesses.

Lieutenant Mark Schneible said Concord police are investigating possible criminal activity related to the group, but provided no other detail. A spokesperson for the New Hampshire Attorney General’s Office said Sunday that it was “actively monitoring” the police investigation.

A white supremacist group called Blood Tribe was claiming through social media posts to be behind Saturday’s events. Organizations that study extremism, including the Program on Extremism at George Washington University and the Anti-Defamation League, describe Blood Tribe as a neo-Nazi group with several dozen members and thousands of online followers.

“[Blood Trine’s] stated goal is to turn the United States into an all-white ethnostate through the violent removal of all Jews and non-white minorities they see as enemies of the white race,” according to George Washington University’s Program on Extremism.

The group carried several flags bearing swastikas and a sign that read “Trump loves Epstein."