By Nick Hawton BBC correspondent in Sarajevo

There are 14 names on the list, including relatives of Radovan Karadzic, the former Bosnian Serb leader who is wanted by the UN War Crimes Tribunal in The Hague.

Milorad Lukovic, better known as Legija, is on the blacklist

Those named are banned from travelling to any European Union country with immediate effect.

Other names on the blacklist are mainly Bosnian Serbs who, it is alleged, have been helping indicted war criminals evade justice, or who have been obstructing the work of the UN War Crimes Tribunal in The Hague.

The list includes Ljiljana and Aleksandar Karadzic, the wife and son of the former Bosnian Serb leader, Radovan Karadzic.

He is wanted by the Hague Tribunal on charges of genocide and remains the most wanted indictee still on the run.

Others named include former Bosnian Serb soldiers and policemen and a former government minister.

EU travel ban blacklist Milovan Bjelica Ljuban Ecim Aleksander Karadzic Ljilana Karadzic Radomir Kojic Tomislav Kovac Petar Krasic Pedrag Kujundzic Milorad Ulemek Lukovic Momcilo Mandic Branko Ratic Slavko Roguljic Vasilje Veinovic Milenko Vracar

The man accused of organising the assassination of the Serbian prime minister in March, Milorad Lukovic, better known as Legija, is also on the list.

All the individuals are now banned from travelling to any EU country, or passing through any EU country, to another destination.

A spokesperson for the European Union said the aim was to tighten the screws on the people still wanted by The Hague. Just over a month ago, the United States froze the assets of more than a150 individuals across the Balkans it believed pose a threat to regional stability.

Both the United States and the EU have indicated the lists are not final and more names could be added.