41.   Ugandan authorities were still trying to determine the origin of the nuclear material.

42.   Gobilliard said the UN would do its best to investigate the attack and try to determine the origin of fire, UN officers said.

43.   A Department spokeswoman said a pollution team flown to the island would take samples of the oil to try to determine its origin.

44.   A spokeswoman at the Department said a pollution team who had flown to the island would take samples of the oil to try and determine its origin.

45.   An investigation was underway to determine the origin of the bomb, they added.

46.   But Bangladeshi UN troops on the spot were unable to determine the origin of the blasts.

47.   The report also notes that allied governments resisted calls that tests be conducted on the bullions to determine their origin.

48.   While the talks were continuing Sunday, an AFP photographer saw an outburst of firing in the area, without being able to determine its origin.

49.   Law enforcement experts hope to use these samples to determine the origin of the spores used in the attacks.

50.   The boxes have been sent to civil aviation experts to determine the origin of the crash.