21.   She said there was no need to use chemical foams as the oil patches had already thickened and they were able to be scooped up.

22.   They abandoned a plan to flood the drydock and instead were using foam in an effort to smother the flames.

23.   Firemen aided by volunteers used foam to try to contain towering flames in a desperate bid to stop the blaze spreading to the four neighbouring tanks.

24.   Protestors started a fire in the middle of the street, put out by police using foam before security forces charged to break up the rally.