Iran Leader: US Playing `Game' In Afghanistan - NPR

"I believe that they themselves," who are now fighting militants in Afghanistan, "are playing a double game," said Ahmadinejad, who has made several visits to the country. "They themselves created terrorists and now they're saying that they are fighting terrorists." Iran Leader: US Playing `Game' In Afghanistan - NPR

US-Iran tension plays out in Afghanistan - AP
Afghan, Pakistani presidents vow to jointly fight against terrorism Xinhua
BBC News - The Guardian

Iran and U.S. Trade Barbs in Kabul Visit - nytimes