Potential Thai prime minister candidates including current leader Prayut Chan-O-Cha, former PM Thaksin Shinawatra's daughter Paetongtarn Shinawatra, arrive at a Bangkok sports hall to support their parties prospective MPs as candidates began registering for next month's general election. Thais go to the polls on May 14 for the first election since the kingdom was rocked by major youth-led pro-democracy protests in 2020. IMAGES AND SOUNDBITES