ATLANTA, Safar 24, 1437, December 06, 2015, SPA -- Jimmy Carter says his most recent brain scan showed no signs of cancer, AP reported. The former president said in a statement Sunday that he will continue to receive doses of Keytruda, a recently approved auto-immune drug to help his body seek out cancer cells in his body. Carter said the scan showed no signs of the original cancer "spots" or any new ones. Carter, 91, announced in August that he had been diagnosed with melanoma that spread to his brain. Doctors removed a portion of his liver and found four small tumors on his brain. --SPA 23:20 LOCAL TIME 20:20 GMT www.spa.gov.sa/w