The Pakistan Telecommunication Authority (PTA) has blocked four websites involved in the sale of unregistered and banned medicines, officials said on Wednesday.

The action was taken following a request from the Drug Regulatory Authority of Pakistan (Drap), which had identified the websites engaged in the online sale of unregistered and smuggled drugs.

PTA officials said the move is part of ongoing efforts to curb the illegal online sale of medicines. As an initial step, four websites have been blocked, while further action will be taken against other platforms involved in similar activities.