SEOUL -- South Korea's presidential security service refused to receive documents about President Yoon Suk-yeol's impeachment trial from the constitutional court, multiple media outlets said Wednesday.

The court sent relevant documents, including Yoon's impeachment resolution passed by the National Assembly last Saturday, to the presidential residence Monday, but the presidential security service refused to receive them Tuesday.

The court's spokesperson said it was unprecedented, noting that the court was reviewing how to deliver documents.

The court ordered the impeached Yoon to submit cabinet meeting minutes and a decree related to the martial law, which was declared by Yoon on the night of Dec. 3 but was repealed by the National Assembly hours later.

Yoon's legal defense counsel said Tuesday that the embattled president will confidently express his position in court when public hearings are held, indicating Yoon will appear at the constitutional court's impeachment trial when the hearings begin.

The constitutional court planned to hold the first preliminary hearing on the impeachment on Dec. 27.

Yoon said in his televised address on Dec. 12 that his martial law imposition was an "act of governance" to protect against the "legislative dictatorship" of the majority opposition.