SARAJEVO?(UPDATE) Film stars Angelina Jolie and her husband Brad Pitt flew into Bosnia on a surprise visit to meet refugees still suffering from the Balkan country's brutal 1992-1995 civil war, an official said Monday.

"They are in Bosnia to visit the sites run by the UN High Commissioner for Refugees (UNHCR)," local UNHCR spokeswoman Aida Prljaca told AFP.

Jolie and Pitt have not been seen in public since Bosnian border police announced that a famous Hollywood couple had arrived late Sunday.

Prljaca said the couple's visit to Bosnia would be discreet, without any contact with media, and that the UNHCR would likely issue a statement later in the day.

Dozens of photographers staked out the luxury Hotel Europe in the centre of the Bosnian capital overnight Sunday, said an AFP photographer.

The couple flew into Sarajevo from Venice, where Jolie is working alongside Johnny Depp on the film "The Tourist"?which is loosely based on the French mystery "Anthony Zimmer" and directed by Florian Henckel von Donnersmarck.

"Brad Pitt and Angelina Jolie arrived at Sarajevo airport, on board a private plane, from Venice," said a senior officer with the border police.

They were met at the airport by officials from the United Nations children's organization, Unicef, the Bosnian daily Dnevni Avaz reported on its Internet site.

Unicef?s representative in Sarajevo Aida Prljaca, in comments to local information website Sarajevo-X, said the couple were on a private visit.

She refused to give details of where they were staying, but dozens of photographers had staked out the luxury Hotel Europe in the center of the Bosnian capital, said an AFP photographer.