By Hyunsu Yim and Joyce Lee SEOUL (Reuters) -North Korean leader Kim Jong Un met Russia's top presidential security adviser Sergei Shoigu in Pyongyang on Tuesday and discussed a "special military operation" in the Kursk region bordering Ukraine,

Wrapping up a one-day visit to Pyongyang, Russian Security Council Secretary Sergei Shoigu said that North Korean leader Kim Jong Un decided to send 1,000 sappers to clear mines in the Kursk region and 5,000 military construction workers to restore infrastructure there, according to Russia's state news agency, Tass.

Thousands of North Korean laborers are already toiling in Russia. A new contingent is headed to the region where North Korean troops fought Ukraine.