Ukrainian President Petro Poroshenko has spoken of the need to stick to the Minsk accords to settle the situation in Eastern Ukraine.

"Only firmly relying on the Minsk accords, including those determining the separation line, not the way it was written in the letter of the Russian president - as at the actual time. We will not allow undermining the Minsk accords. Everything must be based solely on them. And now we must guarantee their strict and full-scale implementation, in particular through the mechanism of the trilateral contact group," he said at a Sunday session of the National Security and Defense Council in Kyiv.