(VOVworld) - The European Union announced Friday afternoon that deadline for the ongoing Iran nuclear talks in Vienna will be extended to July 13. This is the third time in the past 2 weeks that both sides agreed to extend the deadline for the negotiations as Tehran accused western powers of deliberately setting new obstacles. After negotiations on Friday night, all parties acknowledged new progress after 2 weeks of negotiations. However, British Foreign Secretary Philip Hammond said the process was painfully slow while his French counterpart Laurent Fabius had left Vienna and was said to return on Saturday. U.S. Secretary of State John Kerry reiterated US consistent stance of reaching a deal without being influenced by any external pressure.