Police arrested 31 White supremacists packed inside of a U-Haul van reportedly headed to a LGBT pride event in Idaho on Saturday.

The men were arrested by Coeur d’Alene police after they reportedly received a tip about “a little army” of men piling into a U-Haul van. Police officers pulled the vehicle over shortly after receiving the tip.

The group was reportedly found in possession of riot gear, a smoke grenade, shin guards and shields. The men were wearing white balaclavas to cover their faces.

Authorities reportedly said the men intended to cause riot. All 31 men were arrested.

The White supremacist group’s manifesto reportedly advocates for a White ethnostate in the U.S. 

The men were expected to be charged on Monday.

More about the arrests and plot can be found here.