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In the past, the word ‘drone’was associated with destruction only, but this aerial device is now flying beyond their conflict zone and can be used for good in all aspects of life. In this context, one of the most emerging area of drones nowadays are their involvement in smart cities. Drones are expected to play a key role in the smart city environment, providing support for a variety of applications such as medical, package delivery, policing, traffic monitoring and firefighting. However, challenges such as safety, security and privacy in densely populated regions remain as a concern in connecting drones as part of the smart city. This article reviews opportunities along with current regulations and several issues that will determine how the drones industry grows and cities flourish.