The comments by Gen. Hossein Salami, carried on state television, follow a long history of both rhetoric and confrontation between Iran and the US over the narrow strait, through which nearly a third of all oil traded by sea passes.
The remarks by the acting commander of the Guard also follow those of Supreme Leader Ayatollah Ali Khamenei who on Monday criticized US activities in the Persian Gulf.
It’s unclear whether that signals any new Iranian concern over the strait or possible confrontation with the US following its nuclear deal with world powers.
The US Navy’s 5th Fleet, based in Bahrain, did not immediately respond to a request for comment.