WASHINGTON (AFP) - Iraqi Prime Minister Nouri al-Maliki has complained to President Barack Obama about a US meeting with alleged Iraqi insurgents, Baghdads top diplomat said. Iraqi Foreign Minister Hoshyar Zebari said in Washington Thursday the Iraqi government found it shocking that representatives of the Iraqi resistance movement met Turkish officials and at least one US official last spring. We, the Iraqi government, were amazed that representatives from the American and Turkish sides met with representatives from those groups, Zebari told Al-Hurra, the official Arabic-language US television station, saying the insurgent groups adopt violence and terrorism. Zebari said Baghdad was still investigating the alleged meeting with the resistance political council, adding that it apparently took place in March in Istanbul and that the Iraqi government had discussed the issue with US officials. The interesting part is that neighbouring countries and allies are guaranteeing the freedom of movement of those groups in an independent country like Iraq, Zebari said, adding that militants who fight both Iraqis and Americans participated in the meeting. How do you expect allies and friends of the government and the political process to meet and negotiate with parties that are accused of terrorism? Asked about the alleged meeting, Maliki earlier hinted he had raised concerns with Obama, and that he had been assured conditions would be attached to any talks with insurgents. The US government and President Obama told us that they will not be tolerant against those who kill the Iraqi soldiers, kill the US soldiers and kill Iraqi citizens, Maliki told an audience at the United States Institute of Peace (USIP). So there will not be negotiations by the US government or any of its representatives with those killers, added Maliki, who held his first White House talks with Obama on Wednesday. A State Department spokesman confirmed that the meeting had taken place, with Baghdads knowledge, as part of reconciliation efforts between the Shias - who are in the majority in the Iraqi government - and Sunnis. US officials, both military and diplomatic, meet with a wide range of Iraqi contacts with the purpose of promoting reconciliation and fostering national unity, Robert Wood told AFP. The meetings in question occurred some months ago and with the knowledge of officials within the Iraqi government. The spokesman said Washington had not sought in any way to weaken the Iraqi government with the move. Having spent the past six years helping Iraq build a representative and effective democratic government, the last thing we would do is take any action intended to undercut it, Wood said.