21.   The plane then roared its engines and tried to climb, but fell to earth and exploded, they said.

22.   The planes roared over the city about two hours later, but broke no sound barriers.

23.   U.S. planes roared in the skies over the front lines north of the capital throughout the morning and early afternoon Tuesday.

24.   A jet plane roared overhead about midday and there were sporadic salvoes from artillery positions.

25.   Fighter planes in formation roared through the skies over Oslo while high-ranking officals from Norway and distinguished guests from abroad assembled in front of the parliament building.

26.   Sunday, NATO air planes roared over the threatened enclave in a show of force but took no action.

27.   Sunday, NATO air planes roared over the threatened enclave, a UN-declared safe area, in a show of force but took no action.