Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: UK police have grounded some of their drones because of a fault that means the devices can fall out of the sky, BBC Radio 5 Live has found.

Police ground drones after reports they fall out of the sky