Taliban militants have claimed of responsibility for shooting down a NATO helicopter crashed in south Afghanistan on Monday. Qari Yusuf Ahmadi who claims to speak for Taliban outfit in talks with media via telephone from undisclosed location said that militants shot down a chopper of NATO troops in Tangi area of Deh Rawad district in southern Uruzgan province Monday morning killing over a dozen on board. NATO-led International Security Assistance Force (ISAF) in a statement confirmed that four service members died in a chopper crash in southern Afghanistan Monday. Australian authorities have confirmed that three Australian soldiers were killed and seven others injured in the chopper crash, but said that it was not the result of enemy action. Two more NATO soldiers were also killed in separate incidents in Afghanistan Monday, according to press release issued by ISAF. Troops from U.S., Britain, Australia and Netherlands are stationed in south Afghanistan.