December 9, 2012 -- Updated 0953 GMT (1753 HKT) NEW: Three people working for a non-profit agency were abducted, officials say NEW: Dr. Dilip Joseph was abducted while returning from a small clinic, officials say Kabul, Afghanistan (CNN) -- An American doctor abducted while returning from a rural health clinic outside the Afghan capital city of Kabul was rescued by coalition forces, officials said Sunday. There were conflicting reports about who was behind the kidnapping of Dr. Dilip Joseph of Colorado Springs, Colorado. The NATO-led International Security Assistance Force said it was Taliban insurgents, while two local Afghan officials told CNN it was smugglers. Joseph was one of three members of the non-profit group Morning Star Development who were taken at gunpoint Wednesday, the agency said in a statement. "They were stopped and captured while driving, by a group of armed men," according to the agency, which sponsors community and economic initiatives in Afghanistan. They were eventually taken to a mountainous area about 50 miles from the Pakistan border. Morning Star said negotiations between the captors, the hostages and the agency's crisis management team in Kabul and Colorado Springs began immediately after three of its employees were kidnapped. The negotiations continued until Saturday night, when two of the three were released. Morning Star Development did not release the identities of the two men, citing safety concerns "because they live and work in the general region." A driver and an engineer who were working with the doctors have been arrested on suspicion of having contact with the smugglers, tribal leader Malik Samad and district chief Muhammad Haqbeen told CNN. The two officials said Joseph and an Afghan doctor were abducted near the village of Jegdalek in the Sarobi district, just outside Kabul. CNN's Deborah Doft and Barbara Starr contributed to this report.