1.   A FIA spokesman said that the wings were considered dangerous equipment as they hampered visibility and posed possible problems with refueling cars during races.

2.   A nearby rural highway was closed for several hours because heavy smoke from the fire hampered visibility.

3.   But low clouds hampered visibility, slowing the rescue operations above a wilderness region near the southwest border with Ecuador, where dense Amazonian jungles meet spiny Andean peaks.

4.   High winds gusted in parts of the Rocky Mountains and Wyoming, hampering visibility.

5.   In Alberta, a cloud of smoke hung over the oil-industry city of Fort McMurray, hampering visibility and keeping emergency services officials on watch.

6.   Snow also hampers visibility.

7.   The last remains of morning fog also hampered visibility.

8.   Visibility was hampered by a huge cloud of silt raised along with the submarine.

9.   Helicopters were circling overhead but did not appear to be firing, and visibility was being hampered by a thick fog.

10.   But aviation officials said a thick, hazy blanket which has hovered over Kuala Lumpur for the past week was also hampering visibility.