EU countries' foreign ministers will seek a compromise solution regarding a visa restriction for Russian tourists at their two-day informal summit in Prague starting today, Czech Foreign Minister Jan Lipavsky has told media, adding that he considers it crucial for the EU to keep united. The ministers may agree on suspending the agreement facilitating the issuance of visas to Russian tourists. The measure might take effect as of October approximately, high-ranking representatives of Czech diplomacy have told CTK.