1.   Helicopters dumped sand on the melting reactor in an ineffectual effort to stop the spread of deadly nuclear particles.

2.   Helicopters are dumping water on the blaze and dropping supplies to firefighters who must walk, carrying their equipment, to remote areas where the fire is burning.

3.   Poor visibility from thick smoke during the day has hampered firefighting efforts by making it difficult for helicopters to dump water on hot spots.

4.   A police helicopter dumped leaflets over a shopping center in the affluent north of Bogota.

5.   Bulldozers dug breaks in the brush and helicopters dumped water on the flames.

6.   Early Thursday, officials said it looked like it was stabilizing, after helicopters dumped loads of gravel and hundreds of soldiers piled on thousands more sandbags.

7.   Helicopters dumped more from above.

8.   Helicopters dumped water and firefighters engaged in a house-to-house battle to save lives and property.

9.   Helicopters dumped water on fires.

10.   Many of the evacuees watched from ridges and roads as planes dropped fire retardant and helicopters dumped water on the flames.