11.   Apache attack helicopters circled in the sky afterward and bulldozers pushed aside debris.

12.   Apache attack helicopters circled overhead after the first explosion, which sent sparks high into the night sky.

13.   But Ly Thuch, an aide to Prime Minister Prince Norodom Ranariddh, said the helicopter was not attacked.

14.   Guerrillas attacked two helicopters and ambushed a police truck on Sunday in two separate incidents, killing two police officers and wounding six, officials said.

15.   Guerrillas attacked two helicopters and ambushed a police truck in two separate incidents, killing two police officers and wounding six, officials said.

16.   Guerrillas attacked two helicopters Sunday near the southern city of Neiva, killing two police officers and wounding two, the army said.

17.   Terrorized by attacking government helicopters, the residents who remain run in fear even when commercial airplanes pass far overhead.

18.   The ambasassador lamented the death of the policeman who was killed, according to the foreign ministry, when a speedboat attacked his helicopter Wednesday off Cape Trafalgar.

19.   The helicopter was attacked when soldiers were unloading rations for troops, said one official.

20.   The White House warned Iraq against violating the no-fly zone, but said it would not attack the helicopters.