Romney concedes defeat in White House race

Republican presidential candidate, Mitt Romney conceding defeat at the Boston Convention and Exhibition Center on November 7, 2012 in Boston, Massachusetts. Photo/AFP

Republican challenger Mitt Romney conceded defeat in the US election on Wednesday, telling supporters that he had called President Barack Obama to congratulate him on his victory.

"His supporters and his campaign also deserve congratulations," he said, in a brief address at his Boston campaign headquarters. "I wish all of them well but particularly the president, the first lady and their daughters."