Neutron diffraction measurements have been made on bulk samples of liquid D2O below the melting point. A first order difference function has been used to determine the structural changes which are found to follow the trends previously observed in the liquid above the melting point but the displacement of the main peak to lower Q values becomes more pronounced as the temperature is reduced. The data suggest that there is an enhanced local order through the effects of hydrogen bonding and that the system progressively evolves towards the continuous random hydrogen-bonded network similar to that exhibited by amorphous ice.