A Ukrainian soldier looks through binoculars at a checkpoint in Mayorsk, Donetsk region, Ukraine, July 29, 2020. (ANDRIY ANDRIYENKO / AP)

KIEV- Ukrainian President Volodymyr Zelensky said Wednesday that Ukraine will do everything to comply with the ceasefire in East Ukraine, the Interfax-Ukraine News Agency reported.

"Can we say that we have agreed on a ceasefire? Yes. Can we say that there are no single shots? No. Because they are, they exist. Because we have more than 400 kilometers of the contact line, and it is too complicated to control everything," said Zelensky during a briefing on Wednesday.

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The representatives of Ukraine, Russia and the Organization for Security and Co-operation in Europe agreed on establishing a complete and comprehensive ceasefire in East Ukraine on July 27 during a Trilateral Contact Group video conference on July 22.

The agreements provide for a ban on offensive and reconnaissance actions, the use of firearms, as well as the use of disciplinary measures for violations of the ceasefire.

Earlier, Zelensky discussed the conflict resolution in East Ukraine during a phone conversation with Russian President Vladimir Putin. 

READ MORE: Putin, Zelensky discuss eastern Ukraine on eve of ceasefire