There were aircraft losses on both sides from operations carried out by British and Argentine Special Forces. On 30 May, Royal Air Force Harriers were active over Mount Kent. One of them, responding to a call for help from D Squadron SAS, was badly damaged by small arms fire while attacking Mount Kent's eastern lower slopes. Sub-Lieutenant Llambías-Pravaz's platoon was later credited with the destruction of Harrier XZ963 flown by Squadron Leader Jerry Pookwith another claim going to 35 mm Oerlikons of the 601st Anti-Aircraft Artillery Group under the command of 2nd Lieutenant Roberto Enrique Ferre. The Harrier crashed into the South Atlantic 30 miles from the carrier HMS Hermes, Squadron Leader Pook ejected and was rescued.