WARSAW, July 1 (Xinhua) -- Polish President Lech Kaczynski said on Tuesday he would not sign the Lisbon Treaty, describing such a move as "pointless" due to the Irish rejection of the EU reform treaty.

    "For the moment, the question of the treaty is pointless," the president said during an interview with the daily Dziennin in its online version.

    The treaty, which aims to streamline the bloc's institutions after expansion, was approved in April by the Polish parliament, but needs signature of the president to become effective.

    It must be ratified by all 27 member states before taking into effect. But Ireland rejected it in a referendum.

    Irish voters said "no" to the reform treaty in a national referendum in early June, a move plunging the 27-member bloc into crisis over its integration process.

    Although EU leaders have pledged to find ways to save the treaty, the Polish president warned EU leaders against trying to isolate or pressure Ireland.

    "If one breaks the rule of unanimity one time, it will never exist again. We're not strong enough for this type of solution," he said.