Maria Danilova?and Yuras Karmanau

KIEV, Ukraine: Ukrainian President Viktor Yanukovych on Tuesday stood by his warning that his country was not ready to sign a key agreement with the European Union, but said he would still attend a summit at which the signing was to take place for further talks.

Kiev announced last week it was halting efforts to integrate with the European Union, saying the economy could not afford to sacrifice trade with Russia and would rather focus on restoring ties with Moscow.

But EU officials have remained hopeful that he would change his mind in time for the meeting in Vilnius, Lithuania, which begins Thursday. And tens of thousands of Ukrainians have taken to the streets to urge him to sign the agreement, in the largest protests in Kiev since the 2004 Orange Revolution.

Yanukovych said in interviews that he wished to sign the deal as soon as possible, but that the country was still too fragile economically.

Ukraine is struggling to get foreign funding to plug holes in its budget and has also faced immense pressure from Russia, which has worked to derail the deal.

“As soon as we reach a level that will be comfortable for us and when it answers our interests and when we agree on acceptable conditions, then we will talk about signing [the deal],” Yanukovych was quoted as saying.

At the same time, Yanukovych indicated he would attend a summit in Vilnius, Lithuania, that opens on Thursday for further negotiations.

The announcement came as Russian President Vladimir Putin quashed claims by top Ukrainian officials that Moscow has offered Kiev discounts for Russian natural gas in return for Kiev’s refusal to sign the EU deal.

Putin also urged the EU to engage in trilateral talks with Kiev in Moscow to settle all disputes.

Meanwhile, the round-the-clock protests continued in Kiev. Several thousand protesters, including university students who ditched lectures, rallied on two central squares Tuesday night. The demonstrators were joined by Loreta Grauziniene, the speaker of the Lithuanian parliament, who said that Ukraine’s future belongs with Europe.

“Lithuania believes in the right choice of the Ukrainian people,” Grauziniene told the crowd. “Lithuania and Ukraine will be in a united Europe together.”

As Kiev intensified talks with Brussels in recent months, Russia restricted imports of Ukrainian steel, chocolates and other products, which Ukrainian Prime Minister Mykola Azarov said reduced this year’s exports by $6.5 billion.