KABUL, Dec. 14 (Xinhua) -- Afghan army backed by the U.S.-led Coalition forces have killed a senior commander of Haqqani Network, which is loyal to the Taliban, in an operation on Dec. 11 in eastern Afghanistan, said a Coalition statement issued here on Friday. Mullah Sageen, who is responsible for attacks on Afghan forces and improvised explosive device bombings, was the second in command to militant commander Siraj Haqqani, the head of the Haqqani network, the statement said. Meanwhile Sageen is the second major Haqqani network member killed in the last 45 days, it added. Sangeen carries a reward...