Koreans staying abroad started casting ballots for the presidential election, Tuesday.
The voting will continue until April 30 at 204 polling stations in 116 countries, according to the National Election Commission (NEC).
Voters can stop by any nearby station, regardless of their home region. Original documents to prove their nationality are necessary as well as their passports and identification cards which show the holders' name, picture and birthdate.
Those who return to Korea before Tuesday can vote in designated stations, but should report their arrival to the NEC in advance.
In the 2012 presidential election, 71.1 percent of 222,389 overseas residents cast their ballots.
Information about candidates and their pledges are available on the NEC website.
The voters are obliged to check out the operation period of each polling booth through the NEC website, since some of them will run for less than six days. Voting is possible from 8 a.m. to 5 p.m. on the available days.
Their ballots will be delivered to Korea by May 9 and will be tallied along with those cast here.
To attract overseas voters, the two leading contenders have revealed tailored pledges. Front-runner Moon Jae-in of the Democratic Party of Korea vowed to expand the budget for overseas education facilities. Ahn Cheol-soo of the People's Party promised to set up a presidential commission dedicated to supporting overseas nationals.