The European Union said on Friday its relations with Cuba could suffer following recent expulsions of European parliamentarians from the island by Fidel Castro's communist government. Cuba expelled a Czech senator and a German legislator on Thursday, hours before they were due to attend a meeting sponsored by Castro's opponents, according to Reuters. It earlier denied entry to two Polish members of the European Parliament who planned to attend dissident meetings. "This is not acceptable ... As such incidents occur even the best friends of Cuba would find it difficult to maintain their position," Amadeu Tardio, spokesman of the executive European Commission, told a news conference. He said any change in the 25-nation EU's stance towards Cuba could come only at a June meeting of its foreign ministers. The ministers are to decide whether to continue the current policy of diplomatic dialogue with Castro or reapply diplomatic sanctions over human rights abuses. But EU foreign ministers were unlikely to discuss Cuba at this month's meeting on Monday, diplomats said. EU newcomer Poland called on Cuba to free three Polish journalists detained on Friday and expected to be deported. "We demand Polish citizens to be freed immediately. I want to announce to the Cuban ambassador our demands," said Polish Foreign Minister Adam Rotfeld.