Protest organizers say 11 people were arrested Monday outside UnitedHealthcare’s headquarters in Minnetonka during an event spotlighting what critics say is a pattern of improper coverage denials by the nation’s largest health insurer.

Protestors blocking a road were arrested by the Minnetonka Police Department, according to a news release from People’s Action Institute, a consumer group that protested at UnitedHealth Group’s Optum headquarters in Eden Prairie in April.