South Korea's leading presidential hopefuls were crisscrossing the country on the final day of campaigning on Monday before converging on Seoul, vowing to revive an ailing economy and put months of turmoil over a failed martial law attempt behind them.

South Koreans go to the polls on June 3 in the country's 21st presidential election, aiming to restore political stability after months of turmoil and fill a power vacuum following former leader Yoon Suk Yeol's botched attempt to impose martial law.