The government of Russia has demanded that the Polish authorities release fans who have been detained following clashes at Euro 2012.
Outbreaks of violence between supporters before Russia's Group A match against the co-hosts resulted in the arrest of 24 Russians, two of whom were immediately expelled from the country.
Despite both countries being knocked out of the tournament during the group stage, the conflict has continued off the pitch, with Moscow calling for action on the other 22 fans who have now been detained for 10 days.
"From the Russian side, strongly underscored was a necessity of solving all the issues for an early return to the motherland of Russian football fans, who were detained in Poland during notorious incidents at the European football championship," said a statement on Russia's Ministry of Foreign Affairs website.
The statement explained that Deputy Foreign Minister Vladimir Titov and Polish Deputy Foreign Minister Katarzyna Pelczynska-Nalecz had spoken privately about the issue before the demands were issued publically.
This was responded to in robust fashion by Pelczynska-Nalecz, who outlined that the arrested Russians would be dealt with according to the laws of his country.
"Minister Katarzyna Pelczynska-Nalecz responded that in Poland such cases are dealt with and will be dealt with in line with the currently applicable law," said the statement on the Foreign Ministry's website.