The president of VTB, Russia’s second-largest bank, said executives from the National Bank of Ukraine had entered the state-owned company’s office in Kiev on Wednesday morning as tensions between the two countries continue to sour.

Speaking at VTB’s annual investment conference in Moscow, Andrei Kostin told the audience that officials had gained access to the Russian bank’s premises in Kiev after the National Bank of Ukraine announced on Tuesday that it would wind down VTB’s operations in the country.