In the past six years its built-up area has expanded by more than 60%.

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Cleveland actually lost people, with a population decline of 8%, while expanding its built-up area by 33%.

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Wildlife experts have said the sighting of the normally-shy deer so close to a built-up area is "extremely rare".

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If this were to be sprayed over a built-up area such as Kuwait City, it could kill millions of people.

CENTERFORSECURITYPOLICY: Center For Security Policy

Within the R160 controlled area, for example, they must fly above the River Thames, which minimises the risk of crashing into a built-up area.

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"These were people who were mindless, totally reckless, willing to drive four live mortar bombs through a built-up area with no regard to the people, the residents and the families living in the area, " he said.

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The 120 million square foot urban area will be built around a 2.4-mile long lake, and house up to 180, 000 inhabitants once complete.

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