Troops from the African Union Mission in Somalia (AMISOM), alongside the Somali National Army (SNA), on Friday killed six Al-Shabaab militants in an area about some 35km northeast of the southern Somali town of Kismayo and captured a location.AMISOM force spokesperson Joe Kibet told Xinhua that the joint forces took the Bula-Gadud location and recovered weapons during the operation in Lower Juba region.Kibet said that there were no casualties on their side.Militant group Al-Shabaab has been fighting against the Somali government, staging frequent attacks in the country.The joint forces have increased their operations against the militants as part of efforts to secure the ongoing elections in Somalia.