The United Nations refugee agency says it's worried about "growing expressions of xenophobia in Hungary" and about government efforts to portray refugees as a threat to the country.

Montserrat Feixas Vihe, the UNHCR's regional representative for Central Europe, said concerns included "the way the government increasingly vilifies people who have fled from war, ones like Syria, Afghanistan and Iraq."

Hungarian Prime Minister Viktor Orban has been advocating for extremely restrictive immigration policies and is sending out a questionnaire on migration issues to Hungarians. It links migration and terrorism and contrasts support for migrants with support for Hungarian families.

Over the past few months, Hungary, a member of the 28-nation European Union, has seen a huge jump in the number of arriving asylum seekers. Most quickly move on to Western Europe.