21.   Poland has asked the Russian government to explain why Russian military helicopters flew into Polish air space this month, Defense Minister Janusz Onyszkiewicz said Wednesday.

22.   Police searches in Japan have revealed that the sect had a Russian helicopter at one of its facilities near the base of Mt. Fuji.

23.   A Russian helicopter caught fire and crashed in Siberia shortly after takeoff Wednesday morning, killing three people, including one Canadian and one Lebanese, officials said.

24.   A Russian military helicopter crashed in the Central Asian nation of Tajikistan on Friday, killing at least three people aboard and injuring three, news agencies reported.

25.   A Russian military helicopter crashed near the Chechen capital of Grozny on Wednesday, killing three people, a news agency reported.

26.   A Russian helicopter caught fire and crashed in Siberia shortly after takeoff Wednesday morning, killing three people, including two Canadians, news reports said.

27.   A Russian helicopter chartered by geologists disappeared Tuesday during a flight in the Far East, and two aircraft were searching the area, a news report said.

28.   A Russian helicopter crashed and caught fire in Siberia shortly after takeoff Wednesday morning, killing three people, including one Canadian and one Lebanese, officials said.

29.   A Russian helicopter crashed in the Antarctic, killing five people and seriously injuring four, Russian news agencies reported.

30.   A Russian helicopter crashed on an Arctic island after an apparent engine failure, killing both crew members, officials said Tuesday.