Iran's inability to locate and remove sea mines is likely delaying the reopening of the Strait of Hormuz, according to a report.
US officials cited by The New York Times say Iran's limited capability to track and clear the mines is a key reason it has not complied with US warnings.
The issue is expected to be a key point of discussion during peace talks between the US and Iran in Islamabad over the weekend.
The US wants Iran to reopen the Strait immediately, while Iran has sought control over the waterway in its ten-point proposal.
The Strait has been closed for over a month due to fears of mines and drone, missile attacks, resulting in energy crises for countries including India.
US officials say Iran placed the mines haphazardly, making it difficult to locate and remove them, and even US military forces have limited capabilities to clear them.
