1.   That was the occasion when a gas leak caused an explosion which wrecked an entire tenement.

2.   The security leaks have caused a widespread furore.

3.   A gas leak caused the explosion.

4.   A gas leak caused a partial collapse of a block of flats.

5.   Already a stir is being caused by leaks that one or more cup syndicates, including the New Zealanders, are testing out new wing shapes for masts.

6.   Because these problems are caused by leaks in the roof, the first step should be to locate the source of the roof leak and fix it.

7.   But even natural gas needs to be sent swooshing through long pipelines and leaks can cause devastating explosions.

8.   Cornices have been removed when roof leaks caused the supports to rust.

9.   Gas leaks have also caused tragedies in Mexico.

10.   In a January test, a sensor coolant leak caused the interceptor to miss the target altogether.