Thailand has asked Britain to extradite former prime minister Yingluck Shinawatra, overthrown in a coup in 2014 and sentenced in absentia to jail for negligence, Reuters reported on Tuesday quoting Prime Minister Prayuth Chan-ocha. After fleeing the country in August, Yingluck made her first public comments through social media last month, thanking Thais who congratulated her on her 51st birthday. She also updated pictures on her official Twitter and Instagram accounts. Yingluck was spotted with her brother, former Prime Minister Thaksin Shinawatra, at the FIFA World Cup semi-finals in Russia last month. The Thai Supreme Court found Yingluck guilty for mishandling a rice subsidy scheme that allegedly cost Thailand at least $8bn.