Poland imposes sanctions against 50 Russian businessmen and companies, Interior Minister Mariusz Kaminski said, Reuters reported.

Among them are Gazprom and chemical and fertilizer producer Akron, as well as coal trading companies SUEK Polska and KTK Polska. "Gazprom has a minority stake in EuRoPol Gaz, an entity that owns the Polish section of the Yamal pipeline that carries Russian gas to Europe. Individuals on the list include billionaire Mikhail Fridman, co-founder and largest shareholder of Alfa Bank; aluminium tycoon Oleg Deripaska; and Eugene Kaspersky, founder of Russian cybersecurity company Kaspersky."

"This is the first sanctions list ... it has 50 items. There are oligarchs and companies that do real business (in Poland)," Interior Minister Mariusz Kaminski told a news conference. "It is likely, almost certain, that this list will be widened."

The sanctions include an asset freeze and a ban on entry into Poland.