(Fredericksburg)- Fredericksburg Police now investigating a second robbery at gunpoint of a gas station. Yesterday morning just after 5 the Exxon on Route Three was robbed. A man showing a handgun walked up to the counter with a backpack and demanded the cashier fill it with money. Police do not know if its connected to a robbery Thursday at the Sunoco on route one near the Falmouth Bridge. Anyone with information asked to contact city police at 540-373-3122.