Pope Francis arrived in Hungary early on Sunday, starting an unusually short stay that will underline differences with nationalist and anti-immigrant Prime Minister Viktor Orban.

Francis, 84, will spend only seven hours in the capital Budapest to close an international Roman Catholic meeting before moving on to Slovakia, where he will stay much longer, visiting four cities before leaving on Wednesday.

Asked about his recent surgery, the Pope said he was feeling fine.

The Vatican's schedule says Francis is due to meet Orban and President Janos Ader as well as bishops and representatives of some Jewish communities before saying Mass to conclude a Church congress that began last Sunday.

The extreme brevity of his stay in Budapest has prompted diplomats and Catholic media to suggest that the pope, making his first trip since surgery in July, is giving priority to Slovakia, in effect snubbing Hungary.