Allies of Thailand's fugitive ex-leader Thaksin Shinawatra stormed to victory in elections Sunday, in a remarkable comeback after years of turmoil sparked by his ouster in a military coup. Prime Minister Abhisit Vejjajiva conceded defeat and congratulated a victorious opposition led by Thaksin's youngest sister, Yingluck Shinawatra, who is now set to become Thailand first female premier.Duration: 01:57