South Korea’s impeached president has received a pay rise despite being holed up inside a guarded compound after his botched martial law declaration.

Yoon Suk Yeol’s salary is set to increase by 3 per cent to 262.6 million won (£147,000), in line with the standard for government officials, even though he could be arrested this week.

Mr Yoon decamped to his fortified hillside villa in Seoul after parliament voted to suspend him last month over his ill-fated martial law decree on Dec 3, with investigators vowing to arrest him in a separate probe into possible insurrection.

While suspended from duties and hunkered down in his compound, he nevertheless remains in office until the constitutional court rules on his impeachment and will continue to receive his salary and security benefits.

Police are planning a three-day operation starting on Wednesday to arrest the president, according to South Korean broadcaster SBS.

Commanders are thought to be preparing for a “sit-in style” extended stand-off at the presidential residence, choosing to wait out resistance rather than risk violent confrontation with the presidential security service.