Zimbabwe's government will charge as much as $50,000 (£36,000) for licences to grow cannabis, a journalist has tweeted.

The government announced this weekend that that individuals and businesses would be able to apply for licences to cultivate cannabis for medicinal or scientific use.

Lesotho issued Africa's first licence for medical cannabis production last year, making Zimbabwe the second African country to legalise growing cannabis.

Exiled former spin doctor for Robert Mugabe, Jonathan Moyo, has said the Zimbabwean decision was made before Mr Mugabe was forced to resign.