After two leaders were impeached in as many weeks, a deadly plane crash has prompted South Korea’s feuding political camps to temporarily halt a protracted power struggle.

South Korea's main opposition party introduced a bill to impeach acting President Han Duck-soo on Thursday, a day before it plans to seek a vote on the move, which could deepen a constitutional crisis triggered by a short-lived martial law.

South Korea's opposition Democratic Party submitted an impeachment motion against embattled acting President Han Duck-soo on Thursday in the latest challenge to the country's leadership structure.