As pro-Western opposition leader Viktor Yushchenko celebrates victory in Ukraine's presidential election, the BBC News website highlights international reaction.
I will never concede such a defeat, because the constitution and human rights were violated in our country.
We have lost nothing. We intend to get the supreme court to review the outcome of the election and to cancel the results.
Defeated presidential candidate Viktor Yanukovych
We always knew that the Yanukovych team would be running a legal battle against results which were easily predictable, but as many experts do confirm, and as many international observers said, those complaints are of a technical nature. There was no massive fraud, there are no serious reasons for anybody to be concerned about the justice of the results.
Oleg Rybachuk, Ukrainian MP and Mr Yushchenko's campaign manager
I must show Russia that our earlier ties were deformed, they were formed by Ukrainian [business] clans.
We can and must turn this page if we are friends and are prepared to look one another in the eye.
Viktor Yushchenko (in an interview with Russian daily Izvestia)
I trust Viktor Yushchenko will make good use of the enormous potential inherent in Ukraine's emerging civic society and the enthusiasm and trust of millions of Ukrainians in democracy and law-abiding statehood.
I believe Yushchenko will strive for good ties with western Europe as well as the Russian Federation and all friendly-minded neighbouring countries.
Polish President Aleksander Kwasniewski
Canadians are encouraged by the high number of Ukrainians who
exercised their democratic rights. We look forward to the announcement and confirmation of the winner.
Canadian Foreign Minister Pierre Pettigrew
They produced an election as good as some countries in western Europe in such a short space of time. Yes, there were flaws, of course there were... There were flaws that I hope a democratic government will address, so for me it was quite exhilarating to see a good election.
British MP Bruce George, head of an Organization for Security and Co-operation in Europe (OSCE) monitoring mission.
This is an historic moment for democracy in Ukraine... it appears that the Ukrainian people finally had an opportunity to choose freely their next president.
Throughout the Ukrainian presidential campaign the US has supported a democratic process, not a particular candidate. We congratulate Ukrainians for the courage they displayed in standing up for their democratic rights. We call on Ukrainians now to set their divisions behind them and to refrain from violent separatism or provocations.
US Secretary of State, Colin Powell
The European Union is looking forward to a new phase in Ukraine's development.
Dutch presidency of the European Union
I wish first and foremost to congratulate the Ukrainian people: they were aware of the importance of these elections for the future of their country and have responded accordingly. The electoral turnout was high and the incidents were few.
I also want to pay tribute to the leaders of Ukraine. They have acted with a high degree of responsibility to set their country firmly in the path of democracy.
EU foreign policy chief Javier Solana
I don't think there will be any substantial effect on our relations with Ukraine, with our neighbour, in the defence and security sphere.
This is not connected to the coming to power of any particular politician. It is connected to the fundamental interests of the peoples of our two countries. I think these interests will stay the same as they were before.
Russian Defence Minister Sergey Ivanov