21.   Burundian officials accused the refugees of aiding Burundian Hutu rebels, and Rwandan officials accused extremists of preventing the refugees from returning home voluntarily.

22.   But new fighting has prevented refugees from returning home and humanitarian aid from reaching civilians.

23.   Defense Minister Georgi Ananiev told state radio Yugoslavia also is increasing security on its side of the border, apparently to prevent refugees from fleeing to Bulgaria.

24.   Ethnic tension, particularly between Serbs and allied Muslims and Croats, has prevented many refugees from returning home.

25.   Exiled Hutu soldiers and militias mixed in with the refugees and took control of the camps, preventing many refugees from going back to Rwanda.

26.   Ethnic hatreds have prevented war refugees from returning to their homes, as called for in the agreement.

27.   Exiled Hutu soldiers and militias mixed in with the refugees and took control of the U.N. camps, using force to prevent many refugees from going back to Rwanda.

28.   France has pledged to increase patrols, install new surveillance cameras and improve fencing to prevent more refugees from getting access to the rail yard and tunnel.

29.   Hard-liners on all sides want to cement the ethnic division of the country by preventing refugees from returning to abandoned homes in territory held by other ethnic groups.

30.   He also complained that Zaire is not doing enough to prevent refugees from conducting raids in Rwanda.