71.   Explosions rang out from the snow-covered mountains beyond the city, and Chechen forces downed at least one Russian helicopter.

72.   Explosions rang out from the mountains beyond the city, and Chechen forces downed at least one Russian helicopter.

73.   Federal and local troops moved in, and Russian helicopter gunships fired on the rebels Saturday and Sunday, but did not dislodge them.

74.   Federal forces also confirmed the loss of numerous Russian helicopters and armored vehicles.

75.   For a second day, Russian helicopter gunships and hundreds of ground troops battled Chechen rebels holding dozens of hostages.

76.   Four Russian helicopter gunships blasted guerrilla positions early today but reportedly were unable to land to deliver reinforcements.

77.   Four Russian helicopter gunships, flying in pairs, were making constant circles over the area.

78.   Four Russian helicopter gunships blasted guerrilla positions Tuesday morning but reportedly could not deliver reinforcements because of the absence of landing place.

79.   Gluck was brought to Nazran, capital of the republic of Ingushetia, on a Russian military helicopter.

80.   Gunmen attacked a Russian military helicopter base at Dushanbe airport as fighting spread in the central Asian nation, officials said Thursday.