Poland's eurosceptic president will sign the European Union's Lisbon treaty on Sunday, a senior official said Thursday, making ratification in the Czech Republic the last major hurdle for the treaty, AFP reported.
Lech Kaczynski would sign on "Sunday, probably after his return from the Vatican, early in the evening," Aleksander Szczyglo, the president's head of security, told the TVN24 television channel.
"The president will keep to his promises... He had declared that in the case of a Yes vote in the second Irish referendum his decision would also be positive," he added.
Irish voters -- reversing the outcome of a referendum last year -- on Saturday backed the Lisbon treaty, aimed at streamlining decision-making in the 27-nation bloc, by 67 percent to 33 percent.
In the Czech Republic, President Vaclav Klaus was last week ordered by the Constitutional Court to delay signing the treaty until it rules on its validity.
The court is reviewing a complaint against the treaty filed by Czech senators and expects to announce a date for the final ruling within three weeks.