By Heekyong Yang and Josh Smith SEOUL (Reuters) -South Korea's acting president, Han Duck-soo, moved on Sunday to reassure the country's allies and calm financial markets a day after President Yoon Suk Yeol was impeached and suspended from his duties over a martial law attempt.

South Korea’s opposition leader offered Sunday to work with the government to ease the political tumult as officials sought to reassure allies and markets, a day after the opposition-controlled