THE HAGUE (Agencies) - US President Barack Obamas Administration had its first direct contact with Iran Tuesday at a conference on Afghanistans future where they found common cause on rebuilding the war-torn nation and in battling but remained at odds over the presence of foreign troops there. In the course of the conference today, our special representative for Afghanistan, Richard Holbrooke, had a brief and cordial exchange with the head of the Iranian delegation, she told a Press conference. The meeting between Richard Holbrooke and Muhammad Mehdi Akhoondzadeh took place on the sidelines of a meeting in The Hague to discuss Afghanistan. She said the meeting had been unplanned, but Holbrooke and Irans Deputy FM M Mehdi Akhoondzadeh agreed to stay in touch. The fact that Iran was present at Tuesdays meeting, she added, was a promising sign that there will be future cooperation. She said she also delivered a letter to the Iranian delegation about three US nationals in Iran who are unable to return to the US. In the letter we ask Iran to use all of its facilities to determine the whereabouts, and ensure the quick and safe return, of Robert Levinson and release Roxana Saberi, while giving her and Esha Momeni permission to travel, she said. At the conference on stabilising a country rocked by the Taliban-led insurgency, Afghan President Hamid Karzai and Hillary both said dialogue with moderate members of Taliban could be the best way to halt the violence. And in a rare meeting of minds, Hillary and Irans Deputy FM stressed their support for projects to rebuild Afghanistan as well as end its reputation as the epicentre of the global heroin trade. Trafficking in narcotics, the spread of violent extremism, economic stagnation are regional challenges that will require regional solutions, said Hillary. She was addressing Karzai, UN Secretary-General Ban Ki-moon and representatives of 90 countries and organisations meeting in The Hague. Iran was represented by Deputy Foreign Minister Mohammad Mehdi Akhoondzadeh, who said the Islamic republic was willing to take part in international efforts for Afghanistan. Iran is fully prepared to participate in the projects aimed at combating drug trafficking and the plans in line with developing and reconstructing Afghanistan, he told delegates. In a sign that Tehran and Washington are far from reconciled on Afghanistan, Akhoondzadeh warned that the deployment of foreign troops was not improving security there. Hillary, who on Monday said the US will donate $40m for August elections in Afghanistan, backed Kabuls plans to hold reconciliation talks with members of the Taliban or former Al-Qaeda supporters who reject violence. They should be offered an honourable form of reconciliation and reintegration into a peaceful society, if they are willing to abandon violence, break with Al-Qaeda, and support the constitution. Karzai also reaffirmed his intention to seek dialogue with repentant extremists. We must spare no effort to bring back to Afghanistan and to normal life all those from the ranks of the Taliban who have no association with Al-Qaeda and are willing to embrace peace and accept the constitution, he said. Nato Secretary-General Jaap de Hoop Scheffer urged nations and world bodies Tuesday to give money to a trust fund created by the military alliance to support Afghanistans national army. I invite all nations and organisations around this table to provide a financial contribution to this trust fund so we can sustain the Afghan national army, the outgoing alliance head told delegates to an international conference on Afghanistan being held in The Hague. Afghan President Hamid Karzai urged delegates to the conference to translate their goodwill into a concrete plan of investment for the development of the Afghan security forces.