1.   However, one result is flying debris, such as the tire that killed spectators in the stands at Michigan Speedway during a CART race earlier this year.

2.   Last weekend, for the first time at an NHL game, a flying puck killed a spectator.

3.   The CART circuit suffered a similar tragedy last July, when three spectators were killed and several others were injured by debris after a crash at Michigan Speedway.

4.   The tragedy was the horrible accident that killed three spectators.

5.   Three spectators were killed at Lowes when debris from a wreck flew into the grandstand.

6.   Three spectators were killed and dozens injured.

7.   Three spectators were killed and eight injured in that incident.

8.   A car competing in the Cyprus Motor Rally skidded into a group of onlookers, killing one spectator and injuring four others, officials said Saturday.

9.   A racing car driver spun out of control Saturday during a rally on this Portuguese island in the Atlantic, killing two spectators, news reports said.

10.   A race car reportedly spun out of control at an auto rally in southern Spain on Saturday, plowing into the crowd and killing three spectators.