Bissau, March 02, SPA -- A senior official says renegade soldiers have killed Guinea-Bissau President Joao Bernardo Vieira, hours after a bomb blast took the life of his rival, the armed forces chief of the West African nation, Associated Press reported. Luis Sanca, security adviser to Prime Minister Carlos Gomes Jr., confirmed the president's death but gave no details. Gunfire was heard for several hours around Guinea-Bissau's presidential palace early Monday, but the violence died down shortly after dawn. The killing of the President came on the heels of the killing on Sunday evening of army chief Batista Tagme Na Wai, DPA quoted media reports as saying on Monday.