South Korean Prime Minister Hwang Kyo-ahn will begin getting official briefings from aides of President Park Geun-hye on Monday, having assumed presidential authority in a caretaker role following her impeachment by parliament last week.

Hwang has sought to calm anxiety over national security and to reassure financial markets while Park's presidency is held in limbo pending the outcome of a Constitutional Court review of her impeachment, which may take up to 180 days.

Until then, Park will remain in the presidential Blue House a few blocks north of the main government complex where Hwang's office is located.