South Korea's main parties hold emergency talks as impeachment vote looms

South Korea's main parties are holding emergency meetings amid reports MPs could bring forward a vote to impeach President Yoon Suk Yeol over Tuesday night's short-lived martial law declaration.

The main opposition Democratic Party says the vote, currently scheduled for Saturday, could take place as soon it can guarantee the numbers to pass the motion.

In the first clear sign his own party may now vote with the opposition, the leader of Yoon's ruling party called for his swift suspension on Friday, saying he posed a "great danger" if he remained in power.

The opposition need the support of at least eight ruling party MPs to secure the 200 votes required for the impeachment motion to pass.