Lankov detained in Riga by Latvian police. Lankov teaches at Kookmin University in Seoul since 2004. Latvian authorities placed him on a blacklist. Lankov handed over to immigration after blacklist. Lankov held until 11 PM with lawyers. Organizers confirmed his safety and notified Australian consul. Kookmin University assessing the situation. Lankov fined in Moscow for undesirable organization and criticizing Russia's war and North Korean troops