The chief US delegate to the International Atomic Energy Agency (IAEA) warned Syria on Saturday that it had until March to begin showing signs of cooperation over its nuclear plan or the country would face punishment. Gregory L. Schulte presented Damascus with the ultimatum ahead of an IAEA meeting scheduled to take place in three months. Schulte told the London-based Arab daily Asharq Alawsat that "Syria must choose whether it plans to follow in Iran's footsteps or to cooperate." Schulte said that according to an American investigation, North Korea had not denied involvement in the construction of the alleged Syrian reactor that was reportededly destroyed by Israel in a September 2007 air strike. If Damascus chooses not to cooperate "there will be a negative reaction and serious questions will be raised," the US envoy cautioned.