21.   Rain kept the track closed for the first three hours of the scheduled six-hour session.

22.   Rain storms earlier in the week twice closed the track to training.

23.   The derailment left a zigzagging trail of silver cars along a muddy embankment and closed the track indefinitely.

24.   The derailment left a zigzagging trail of silver cars along a muddy embankment and was expected to indefinitely close the track.

25.   The government decision was expected to anger Italian environmentalists who have long opposed the felling of trees and asked to have the track closed and rebuilt in another area.

26.   The race track was closed at the time of the blast.

27.   The track was closed for several minutes as Hays and Hines waited up at the start house for the signal to start.

28.   The track will be closed until race day, except for a final two-hour practice on Thursday.

29.   The track is closed until Wednesday, when practice resumes.

30.   The two-way elevated rail track is closed for train traffic because of the accident, he said.