Jimmy Carter announces cancer has spread to his brain

Former US president says he will be undergoing radiation treatment to fight melanoma and that he has 'complete confidence' in medical team

Jimmy Carter's melanoma, a form of skin cancer, has been discovered in four places on his brain and is likely to "show up other places in my body", the former US president said on Thursday.

Carter told a news conference he would be undergoing radiation treatments and injections to fight the cancer, which was discovered after he underwent surgery to remove a growth on his liver, where melanoma also had been discovered, he said.