South Korea’s Constitutional Court will rule Friday on whether to formally dismiss or reinstate impeached President Yoon Suk Yeol — a decision that either way will likely deepen domestic divisions.

The court has been deliberating on Yoon’s political fate after the conservative leader was impeached in December by the National Assembly, which is controlled by the liberal opposition, over his brief imposition of martial law that triggered a massive political crisis. Millions of people have rallied around the country to support or denounce Yoon. Police said they will mobilise all available personnel to preserve order and respond to possible acts of vandalism, arson and assault before and after the court’s ruling.

The Constitutional Court said in a brief statement Tuesday that it would issue its ruling at 11 am Friday and allow TV stations to broadcast it live.

Removing Yoon from office requires support from at least six of the court’s eight justices.

If the court rules against Yoon, South Korea must hold an election within two months for a new president.

If the court overturns his impeachment, Yoon would immediately return to his presidential duties.

Jo Seung-lae, a spokesperson for the main liberal opposition Democratic Party which led Yoon’s impeachment, called for the court to “demonstrate its firm resolve” to uphold the constitutional order by dismissing Yoon.

Kwon Youngse, leader of Yoon’s People Power Party, urged the court’s justices to “consider the national interest” and produce a decision that is “strictly neutral and fair.”

Many observers earlier predicted the court’s verdict would come in mid-March based on the timing of its rulings in past presidential impeachment.