The Russian President Vladimir Putin, German Chancellor Angela Merkel, head of the French Republic Francois Hollande and Ukrainian leader Petro Poroshenko in conversation stressed the need for a rigorous, comprehensive implementation of the Minsk agreements, informs a press-service of the Kremlin. As noted, on the last working day of the week, initiated by the German side had a telephone conversation with Putin, Merkel, Hollande and Poroshenko. according to the press service, the leaders discussed the situation in the South-East of Ukraine in the context of the implementation of the Minsk agreements of February 12, 2015. "Accentuated the need for their rigorous and comprehensive enforcement to de-escalate the conflict ", - is informed in the report.