Another video on YouTube, posted Saturday, apparently of Khirbet Ghazaleh, shows a small fire burning in the bricks and rubble of a house, emanating heavy white smoke.

CNN: SHARE THIS

Rox said its "highly sophisticated" new smoke cloud system released a heavy fog which reduced visibility when activated.

BBC: Rox in George Street in Edinburgh

The skies over American cities were heavy with smoke, and six days a week tens of millions of begrimed, overalled workers poured through factory gates, lunch pails in hand.

FORBES: Steel Versus Silicon

Artillery set a four-story house in Aracinovo on fire, blanketing the eastern part of the village with heavy gray smoke.

CNN: Residents flee Macedonian fighting