Hundreds of supporters of South Korea's arrested president, Yoon Suk Yeol, stormed a court building early on Sunday after his detention was extended, smashing windows and breaking inside, an attack the country's acting leader called "unimaginable".

South Korean President Yoon Suk Yeol has been detained after a massive law enforcement operation at the presidential compound that ended a weeks-long stand-off between his bodyguards and the country’s anti-corruption agency.

A South Korean court extended President Yoon Suk Yeol’s detention for 20 days, igniting violent protests from his supporters. Yoon, arrested for insurrection after a failed martial law declaration, faces a tumultuous political landscape as his party’s support rebounds amid ongoing turmoil.