Slovenia will only allow 2,500 migrants to cross its borders daily - half the number neighbour Croatia has asked for.br Interior Ministry Secretary of State Bostjan Sefic said Slovenia could not accept Croatia's request to take 5,000, because Austria's daily limit is 1,500.br The limitation on numbers has led to a build-up of migrants and refugees on Croatia's border with Serbia.br German Chancellor Angela Merkel is hoping to tackle the crisis at source, visiting Turkey which is currently hosting two million Syrians and hundreds of thousands of Iraqis.br At a joint news conference with Mrs Merkel, Prime Minister Ahmet Davutoglu said Turkey would do its best to work with Germany to prevent illegal migration, but added that the crisis could not be resolved without a solution to the Syrian conflict.