The African Union (AU) has called on the Democratic Republic of Congo (DR Congo) to postpone the release of its presidential election results today due to   "serious doubts" it has about provisional results released last week. <br />''<br />''Opposition candidate Felix Tshisekedi was declared the winner but another opponent of the current administration, Martin Fayulu, insists he won. A number of AU heads of state and government met in the Ethiopian capital, Addis Ababa, yesterday and released a statement about the disputed 30 December election.<br />''<span style="color: #222222;"> </span><br />