Preparations are underway with only one day to go before voters in the Ukrainian region of Crimea decide on whether to re-join Russia or stay with Kiev.

Schools, that will be used as polling stations are spruced up and voters register ahead of the referendum.

International monitors arrive in Crimea to observe the vote.

They've been invited here by Russia and pro-Moscow Crimean authorities.

(SOUNDBITE) (Russian) EDITOR OF NEWSPAPER FROM MOLDOVA, SAYING:

"The result of the referendum which we will get already on Monday will show what residents of Crimea really want. And it is going to be a signal for authorities in Kiev to understand what should be done next. Because everyone understands with no doubt that the majority of Crimeans will support joining Russia."

But the U.S. and the European Union say Sunday's vote in Crimea violates international law and the Ukrainian constitution.

Now the country's prime minister is seeking stronger links with Eu