The United States imposed sanctions on six entities based in Hong Kong and China on Wednesday that it accused of being involved in an Iranian drone procurement network, as the Trump administration implements its "maximum pressure" campaign against Tehran.

The latest decision follows the United States sanctioning more than 30 entities involved in Iran's shadow fleet.

Described as a key move in US President Donald Trump's "maximum pressure campaign" against Iran's oil industry, his administration imposed new sanctions Monday on individuals, entities and tankers in mainland China,

The US Treasury Department announced new sanctions on Wednesday targeting six entities based in Hong Kong and China that are alleged to be part of an Iranian drone procurement network. According to Treasury officials,

The Treasury Department imposed sanctions on six firms in Hong Kong and mainland China for allegedly supplying components to Iran ’s drone and missile programmes in violation of US bans. The firms acted as fronts to acquire American parts for Iranian military companies,

The United States on Wednesday imposed sanctions on six entities based in Hong Kong and China that it accused of being involved in an Iranian drone procurement network. This was as the Trump’s administration implements its maximum pressure campaign against Tehran.