Russia will not tolerate non-payment of Ukraine's debt of $3 billion and will press for default on the loan and default on all Ukrainian borrowings, Prime Minister Dmitry Medvedev said.

"Of course, we can not tolerate this [non-payment of $3 billion], and we will go to court, we will press for default on the credit and default on all Ukrainian borrowings," Medvedev said in an interview with a Russian TV channel on Wednesday.