Ukraine requested the postponement of President Viktor Yushchenko`s visit to Moscow, which was due to start April 3, over an escalating political crisis in the ex-Soviet state, the Kremlin press office said Monday, according to RIA Novosti.

"Referring to the domestic political crisis, the Ukrainian president said [to President Vladimir Putin on the telephone] that his visit to Moscow earlier planned for the next few days was impossible," the Kremlin said, confirming an earlier unofficial report on the postponement.

Yushchenko`s first visit to Russia was originally slated for March 21, but was postponed after Moscow declared a day of mourning following three major accidents rocked the country one after another.

Ukraine`s Foreign Ministry earlier said the visit was to begin April 3. The Kremlin did not confirm the visit.