Both beaches on D plus 1 were still under enemy artillery fire.

Securing the Beachheads
Supreme in the air, the Allies began on D Day to build up a similarly crushing superiority on the ground. By the end of 6 June 1944 First Army had succeeded in landing most of eight and a third infantry regiments-only a little less than planned. For operations on 7 June five divisions were ashore and operational (although one, the 29th, lacked one of its regiments until later in the day). All of these divisions were seriously deficient in transport, tank support, artillery, and above all supplies. The worst situation was in the V Corps zone where, of 2,400 tons of supplies planned to be unloaded during D Day, only about 100 tons actually came in. Ammunition shortage was grave. Both beaches on D plus 1 were still under enemy artillery fire. On OMAHA pockets of enemy riflemen still held out at various points along the coast; beach obstacles, even after work by the engineers during low tide of the afternoon of D Day, were still only about a third cleared; beach exits had not been opened as scheduled nor vehicle parks established inland on the scale contemplated.