31.   Eduardo Cavalli, head of the airline pilots association, told local radio that waiting for a tragedy to happen before taking action was not the right plan.

32.   The tragedy happened late Thursday after hours of torrential rains.

33.   The tunnel and station where the tragedy happened had been cleared of victims, the interior ministry said.

34.   The tragedy happened on Tuesday afternoon for as yet unknown reasons, it said.

35.   The tunnel where the tragedy happened had been cleared of victims by Sunday, the interior ministry said.

36.   Yeltsin said an investigation had been opened into how the tragedy happened and indicated that government heads might roll over the crisis, Interfax news agency reported.

37.   Yeltsin left for Halifax Friday morning saying an investigation had been opened into how the tragedy happened.

38.   Such a tragedy must not happen again, they said.

39.   The Biaro tragedy happened because people were desperate to leave the horrific conditions at Biaro, another spokesman in Geneva, Francis Kpatinde said.