Sierra Leone is dealing with a national emergency as locals say users hooked on "zombie drug" Kush are digging up remains to extract human bones.

       Kush is concocted from an unusual mix of herbs, harmful chemicals, disinfectants and human bones that contain sulphur and boost the drug's potency.

       This week, the country's President Julius Maada Bio declared a state of emergency over drug abuse in the country, which has left swathes of communities overrun by dependency.

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