Four San Diego-based minesweepers are headed to the waters near Iran, in the wake of tensions in the Strait of Hormuz.

An anonymous U.S. Navy official tells CNN that the USS Sentry (MCM 3), USS Devastator (MCM 6), USS Pioneer (MCM 9), and USS Warrior (MCM 10) will leave the U.S. in late April after being loaded onto cargo ships.

Iran has threatened in recent months to shut ...