An autopsy has found no concrete cause of death for Nolan Wells, the black American teen who was found dead on a Mississippi island he travelled to with his friends on July 4th.

Civil rights attorney Benjamin Crump, speaking on behalf of the family, told United States (US) media on Wednesday that an autopsy carried out on Wells’ body was inconclusive, providing little new information in the case that has gripped the country in recent weeks.

Wells’ mother, Christine Wells, spoke during the conference as well, pleading for answers from law enforcement whom she indicated the family has not heard from despite preliminary autopsy results.