1.   But the merger would let B.A.T shareholders benefit from a stock market valuation that is not clouded by smoke.

2.   Yellow smoke clouded the air.

3.   Stores were looted and thick smoke clouded the predominantly black neighborhood just south of downtown.

4.   Two cargo ships collided in the Strait of Malacca off the western coast of Malaysia in an area clouded by smoke from forest fires.

5.   Smoke has also clouded parts of Sumatra island since the past week.