Iranian Foreign Minister Mohammad Javad Zarif participates in a debate session of the ongoing 51st Munich Security Conference in Munich, Germany, Feb. 8, 2015. Iranian Foreign Minister Mohammad Javad Zarif said Sunday that it is quite possible to reach a deal over Iran's nuclear issue and there is no need to further extend the nuclear talks between his country and the so-called P5+1 group. (Xinhua/Luo Huanhuan)