Natural events will not break the chain of causation if they could have been foreseen by the defendant and they should have taken them into account as events that were likely to happen. If the natural event was wholly unconnected with the defendant’s acts (independent and unforeseeable) the chain will be broken. In Humber Oil Terminal Trustee Ltd v Sivand [1998] CLC 751, further expenses incurred in the repair of harbour installations caused by the collapse of the sea bed were still recoverable. The collapse was not a novus actus in that it was in the realms of foreseeability.