Oct 31 (Reuters) - Following are latest security developments in Afghanistan: ARGHANDAB - Afghan and NATO forces killed some 50 Taliban fighters in the Arghandab district close to the main southern city of Kandahar, the provincial police chief said on Wednesday. KUNAR - U.S.-led coalition troops killed an insurgent in Kunar, eastern Afghanistan, on Tuesday, during an operation to capture those helping foreign al Qaeda fighters. URUZGAN - U.S.-led coalition troops and Afghan forces backed by air power killed several Taliban, the U.S. military said. GHAZNI - U.S.-led coalition forces killed some 30 Taliban insurgents, including two commanders, in an air strike in the Gilan district of Ghazni province, southwest of Kabul, the district chief said. The U.S. military said "several" insurgents had been killed in a clash in the area. FARAH - Afghan and foreign forces killed more than 50 Taliban in two days of fighting after insurgents overran the Gulistan district centre in the western province of Farah on Monday, provincial police said. BADGHIS - During the second phase of Operation "Desert Eagle", Afghan and Western troops killed two militants, and captured 17 insurgents in the Gor Mach district of the northern province of Badghis on Wednesday, the Defence Ministry said.