1.   As helicopter gunships buzzed overhead and tanks shelled two blocks of flats nearby, bulldozers set about destroying a swath of homes.

2.   Two helicopter gunships soon buzzed over the pasture where the gunfire came from.

3.   Helicopter gunships buzzed the convoy and shelling could be heard in the distance.

4.   Helicopter gunships buzzed overhead.

5.   Russian armored vehicles blocked the site, causing a huge jam, while helicopter gunships buzzed overhead.

6.   Russian armored personnel carriers patrol the roads around Sernovodsk, and helicopter gunships buzz it ominously day and night.