Thai voters began heading to the polling stations on Sunday morning in the Southeast Asian country's general election.
The polls started at 8:00 a.m. (0100 GMT) and will continue until 5:00 p.m. local time (1000 GMT) on Sunday. More than 52 million Thai citizens are eligible to vote in the election.
Under the two-ballot system with one vote for the 400 constituency members of parliament (MPs) and another for their preferred party vying for the 100 party-list MPs, voters will elect a total of 500 members to the House of Representatives, or lower house of the parliament.
The election pits Prime Minister Prayut Chan-o-cha, seeking reelection as a candidate of the newly established Ruam Thai Sang Chart Party (United Thai Nation Party), against the main opposition Pheu Thai Party, which has been leading in opinion polls in the run-up to the vote. Paetongtarn Shinawatra, daughter of former leader Thaksin and one of Pheu Thai's prime ministerial candidates, is favored by opinion polls as the frontrunner.