South Korea's parliament has introduced a bill to impeach President Park Geun-hye, setting in motion a vote to oust the leader engulfed in an influence-peddling scandal. The parliament is expected to vote on Friday, and opposition parties have said they believe they will get the two-thirds majority needed to pass the bill.

The motion, if passed, must be upheld by the Constitutional Court, and it is a process which could take months. Park is under intense pressure to resign immediately, with big crowds taking to the streets every Saturday calling for her ouster.