North Korea's leader Kim Jong Un has reportedly started his journey to Vladivostok for a summit with Russia's President Vladimir Putin.
The armoured train that Mr Kim uses for foreign visits appears to have departed Pyongyang, South Korean media reported citing a government official.
The meeting between the two leaders is expected to take place as early as Tuesday local time.
The Kremlin has confirmed that Mr Kim will visit Russia "in the coming days".
If the summit with Mr Putin goes ahead, it will be the North Korean leader's first international trip in more than four years, and the first since the pandemic.