BARVIKHA (Moscow Region), October 14 (RIA Novosti) - Czech President Vaclav Klaus said on Wednesday that he would not lift his objections to the EU reform treaty, known as the Lisbon treaty, unless his conditions are met.

After a meeting with Russian President Dmitry Medvedev near Moscow, Klaus said: "I explained to the president that I - and not just I - fear a deepening integration within the European Union. For me this is a serious issue. From my point of view, the conditions I put forward for signing the treaty are serious."

The Lisbon Treaty is an international agreement signed in Lisbon on December 13, 2007 which is expected to change the workings of the European Union. Only the Czech Republic has so far refused to ratify the document, which needs the approval of all 27 EU members to take effect.

Klaus has said he will not sign the treaty as it is a threat to national sovereignty in its current form.

He has demanded, among other things, an opt-out for his country from the EU Charter of Fundamental Rights.

Klaus has also asked the Czech Constitutional Court to review the treaty to see whether it conforms to the country's constitution.

A ruling is expected by the end of October.