US National Guard members deployed to Washington, DC, started carrying their sidearms on Sunday, a spokesperson for the Joint Task Force carrying out the mission told CNN.

The exact number of troops who would carry their weapons was fluid, but they will either carry M17 pistols or M4 rifles, according to officials who spoke on condition of anonymity.

National Guard troops on duty in President Trump’s D.C. crackdown began carrying weapons Sunday evening, according to a spokesman for the National Guard task force. Several members of the Guard from South Carolina were seen late Sunday outside Washington’s Union Station with firearms holstered to their hips.