The lawsuit filed by Russia regarding the non-payment of Ukraine's debt in 3 billion dollars, in the event of such a situation may last for several years, said a source familiar with the situation. However, he drew attention that the Russian Federation has the full right to seek arbitration in Accordance with English law in case of violation by Ukraine of its obligations in June, BelTA news Agency. "If Ukraine does not make the coupon payment, then Russia may be presented for early repayment of the entire loan amount, and, accordingly, to sue, to be discussed by the relevant authorities. However, practice shows that the consideration of such cases may take two to three years, " he said. First source said that the next tranche of financial aid from the international monetary Fund (IMF) for Ukraine is impossible without agreements with holders of its bonds. For its part, a source in the EU institutions was informed that a technical default of Ukraine will undermine the country's ability to attract private investment programme of the European Union, as well as among them in the line of the European Bank for restoration and development and the European investment Bank. The Russian President Vladimir Putin called strange Kiev's decision on the moratorium on the repayment of external debt, according to his vision, the Declaration on the fact of default suggests a low level of professionalism. According to Putin, Russian banks have loan portfolios to Ukraine in the amount of 24-25 billion. The Minister of Finance of Russia Anton Siluanov said that Moscow will turn to international court If the head of Ukraine Petro Poroshenko will sign the law on the moratorium on the payment of external debt of Ukraine. On Tuesday the Verkhovna Rada of Ukraine adopted a law that will give the ability to suspend payments on restructured debt.