In Massachusetts, police arrested 11 heavily armed men following a nine-hour standoff that closed parts of Interstate 95 on Saturday morning. Police first noticed a group of men in military-style gear as they refueled their vehicles with gas on the side of the highway. The men refused to put down their assault rifles or to identify themselves to officers. They were later identified as members of a group calling itself the “Rise of the Moors” — described by the Southern Poverty Law Center as an African American “sovereign citizen movement” with a history of violent confrontations with law enforcement. A local prosecutor said the men were on their way to Maine from Rhode Island for “training.”