The IRGC Navy says two oil tankers struck mines and caught fire on Saturday 7 November after using what it called unauthorised shipping routes.
In a statement reported by Iran International, the IRGC Navy says one tanker was in the eastern part of the strait and the other inside the waterway. It accuses both of repeatedly violating Iranian shipping regulations and switching off their navigation and positioning systems.
The mine claim has not been independently confirmed. Straits Daily Brief says no maritime authority has confirmed it.
Separately, Al Jazeera reports that the UAE says it rescued 22 people from a cargo ship that caught fire.
Straits Daily Brief says the UN has counted 25 seafarers killed in Strait of Hormuz incidents since 28 February. It also cites IMF PortWatch data showing one vessel transited the strait on 1 November. The pre-crisis baseline was 85 a day.