The Defence Ministry in Ghana has ordered stringent tests to be carried out on all the country's military aircraft after a search mission found the wreckage of an army helicopter which disappeared on Saturday.

All seven passengers and crew, including two critically ill patients, were found dead in a dense forest reserve in the Eastern Region 110 kilometres north west of the capital, Accra where the helicopter went down.

It had been ferrying the two patients to Accra for medical treatment.