The Persian Gulf Straits Authority (PGSA), which approves and regulates maritime
transit through the Strait of Hormuz, said any passage not following
PGSA-approved routes will be treated as unauthorized and will be outside the
agency’s security guarantees. The PGSA said liabilities from using unauthorized
routes will rest with shipowners, operators and masters. The warning follows a
new attack near the Strait of Hormuz that U.S. officials told the Wall Street
Journal they attribute to the Islamic Revolutionary Guard Corps and which
targeted a Singapore-flagged cargo vessel.