the "x" lane is closed between nutley and the beltway. ddot crews are making emergency repairs to one of the overhead signs there. we have news4's kristin wright headed in that direction. also with melissa mollet with first 4 traffic. >>> when you encounter the dense fog, definitely slow down, use your low beams. might have a deer dart out in front of you. watch out for pedestrians in the dense fog that we have around. we have in these areas in gray here on the storm team 4 map showing up now. these counties in gray, in northern virginia, have this in effect until 9:00. >> we're slow because of an earlier crash and another issue westbound at nutley two left lanes blocked box of a new crash. >>> we're following a developing story in the district right now. new from overnight police are looking into four new robberies including three at gunpoint. they all started after midnight. police are already looking for two armed gunmen wanted in in connection with three robberies yesterday morning. those incidents happened in upper northwest near che