Tehran says ships from India, China, Qatar and Iraq are allowed to pass freely through the Strait of Hormuz, exempting them from restrictions on the waterway, according to Al Jazeera English. The exemptions imply that Iran has imposed restrictions on passage, though their nature and scope are not described. Analysts cited by Al Jazeera English say the arrangements Tehran describes with the four countries carry political risks. It is not known what the restrictions consist of, when they began, or whether the four countries have confirmed the exemptions. The terms of the exemptions, the specific risks the analysts identify and whether ships from other countries remain restricted are also not known.