31.   A government spokesman would not comment on the incident and there was no immediate explanation.

32.   A U.S. Embassy spokeswoman in Kiev, said the embassy had expressed concern to senior Ukrainian government officials and asked for immediate explanations.

33.   Authorities had no immediate explanation for the crash but said they had launched an investigation.

34.   Authorities had no immediate explanation for the disaster.

35.   Aviation officials had no immediate explanation for the crash Wednesday of the China Southwest Airlines plane, and said they were looking for its flight recorder.

36.   Authorities had no immediate explanation for the crash, but they hoped a voice recorder from the helicopter would provide clues.

37.   Authorities have no immediate explanation for the collapse.

38.   But no summit took place, and there was no immediate explanation why.

39.   Carlton offered no immediate explanation for its reversal.

40.   Confederation officials offered no immediate explanation for the postponement.