The plane has been impounded in Harare together with its consignment while investigations are carried out.
The state-run Herald says Interpol has been roped in to establish the dead man’s identity and nationality.
A post-mortem is also underway in Harare to establish the cause of death.
The Herald says the body was in an advanced state of decomposition, and the authorities want to confirm it isn’t carrying viruses that could spread disease in the country.