"Over the last year, over one million people arrived from western Ukraine to Poland. Most of them are migrant workers, but there are also a number of Ukrainian nationalist movements, including the Right Sector. They are as dangerous as ISIL fighters," Piskorski said.
He underscored that the Right Sector is represented in Poland and poses a serious threat to the country’s national security.
Right Sector was formed as a coalition of nationalist and neo-Nazi organizations at the end of 2013. The organization has played a major role in violent clashes with police, and played a key role in escalating last year's violence in Kiev which culminated in the February 2014 coup.
In November 2014, Russia’s Supreme Court blacklisted Right Sector as an extremist organization and banned its activity in Russia. Earlier, Russia launched a criminal case against leader Dmytro Yarosh for public incitement of terrorism.
