Guidance to vessels operating in or near the strait of hormuz
Persian Gulf · HYDROLANT 1062/15
What this record establishes
Archived notice · 2015-06-24 13:38Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · SHGA 01 MAY 15.. Issued 2015-05-01 20:52Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Persian Gulf. The parsed report position is 26.179, 55.758. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROLANT 1533/15, 1531/15, 1530/15, 1522/15, 1515/15, 1513/15, 1508/15, 1501/15, 1469/15, 1464/15,…later cancellation notice
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 1470/152015-05-01 · Archived notice
- HYDROLANT 1062/15 · this notice2015-05-01 · Archived notice
- issued
- 2015-05-01 20:52Z
- status
- Archived notice
- authority
- SHGA 01 MAY 15.
- issued by
- SHGA
- sea
- Persian Gulf
- position
- 26.179, 55.758
- vessels
- M/V MAERSK KENSINGTON · 2 messagesM/V MAERSK TIGRIS · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
PERSIAN GULF.
STRAIT OF HORMUZ.
GULF OF ADEN.
GUIDANCE TO VESSELS OPERATING IN OR NEAR THE STRAIT OF HORMUZ.
1. THIS ADVISORY SUPERSEDES MARAD ADVISORY 2013-01 AND UPDATES
SPECIAL WARNING 114 TO REFLECT A RECENT INCREASE IN CHALLENGES
INVOLVING COMMERCIAL SHIPS TRANSITING THE PERSIAN GULF
AND STRAIT OF HORMUZ AND PROVIDE GUIDANCE TO MARINERS IN SUCH
CIRCUMSTANCES. U.S. FLAG OPERATORS WITH SHIPS IN THE AFFECTED
AREA ARE REQUESTED TO FORWARD THIS ADVISORY TO THEIR SHIPS BY
THE MOST EXPEDITIOUS MEANS.
2. MARAD ADVISORIES ARE PUBLISHED ON THE MARAD WEB SITE AT
www.marad.dot.gov/news_room_landing_page/maritime_advisories/
advisory_summary.htm AND ON THE MARITIME SAFETY INFORMATION
WEB SITE AT msi.nga.mil/NGAPortal/MSI.portal. SELECT BROADCAST
WARNINGS, SCROLL DOWN TO SEARCH BOX AND SELECT MARAD ADVISORIES.
3. BACKGROUND:
A. AT APPROXIMATELY 0905Z ON 28 APRIL, WHILE TRANSITING THE
STRAIT OF HORMUZ IN THE INTERNATIONAL TRAFFIC SEPARATION
SCHEME IN THE VICINITY OF 26-39.43N 056-15.0E,
M/V MAERSK TIGRIS WAS APPROACHED BY FIVE SMALL IRANIAN
PATROL BOATS, HAILED OVER VHF RADIO, AND CONTACTED VIA
SATELLITE TELEPHONE. THE MASTER DID NOT INITIALLY COMPLY
WITH THE HAILS OR THE DIRECTION OF THE IRANIAN VESSELS.
SUBSEQUENTLY, THE IRANIAN VESSELS FIRED THREE WARNING
SHOTS ACROSS THE BOW OF M/V MAERSK TIGRIS. THE MASTER
COMPLIED WITH IRANIAN DIRECTION AND PROCEEDED TO A
POSITION TWO NM EAST OF JUZIRH-YE LARAK, WHERE THE
M/V MAERSK TIGRIS WAS BOARDED BY IRANIAN PERSONNEL.
B. AT APPROXIMATELY 0655Z ON 24 APRIL, WHILE TRANSITING IN
THE VICINITY OF 25-42N 055-16E, APPROXIMATELY 17 NM OFF
THE COAST OF UAE AND 15 NM OFF THE COAST OF ABU MUSA ISLAND.
M/V MAERSK KENSINGTON WAS APPROACHED BY FOUR IRANIAN PATROL
BOATS AND HAILED OVER VHF RADIO. THE MASTER DID NOT RESPOND
TO THE HAILS. SUBSEQUENTLY, THE IRANIAN VESSELS MANEUVERED
AROUND M/V MAERSK KENSINGTON AND TOOK A POSITION ASTERN OF
THE SHIP. AT APPROXIMATELY 0720Z, ALL IRANIAN VESSELS BROKE
PURSUIT.
4. WHETHER THESE ARE ISOLATED INCIDENTS IS NOT KNOWN. U.S. MERCHANT
VESSELS AND MARITIME INTERESTS OPERATING IN ACCORDANCE WITH THE
INTERNATIONAL LAW OF THE SEA IN THE WATERS OF THE PERSIAN GULF,
STRAIT OF HORMUZ AND GULF OF OMAN ARE ADVISED TO TAKE THE
FOLLOWING ACTIONS WHEN TRANSITING THE AREA:
A. IF A U.S. FLAG VESSEL ENGAGED IN TRANSIT THROUGH THE STRAIT
OF HORMUZ OR ITS APPROACHES IS HAILED BY IRANIAN FORCES, IT
SHOULD PROVIDE ITS VESSEL NAME AND AFFIRM THAT IT IS EXERCISING
THE RIGHT OF TRANSIT PASSAGE IN ACCORDANCE WITH THE
INTERNATIONAL LAW OF THE SEA.
B. IF BOARDING OF A U.S. FLAG VESSEL ENGAGED IN TRANSIT THROUGH
THE STRAIT OF HORMUZ OR ITS APPROACHES IS REQUESTED BY IRANIAN
FORCES, THE SHIP'S MASTER SHOULD, IF THE SAFETY OF THE SHIP
AND CREW WOULD NOT BE COMPROMISED, DECLINE PERMISSION TO BOARD
BY NOTING THAT THE VESSEL IS IN TRANSIT PASSAGE AND NOT SUBJECT
TO COASTAL STATE ENFORCEMENT JURISDICTION.
C. IF A BOARDING BY IRANIAN FORCES OCCURS EVEN AFTER DECLINING
PERMISSION, THE BOARDING SHOULD NOT BE FORCIBLY RESISTED BY
PERSONS ON THE U.S. FLAG MERCHANT VESSEL. REFRAINING FROM
FORCIBLE RESISTANCE IN NO WAY INDICATES CONSENT OR AGREEMENT
THAT SUCH A BOARDING IS LAWFUL.
D. U.S. FLAG VESSELS ARE ADVISED TO REPORT SUCH INCIDENTS
IMMEDIATELY TO COALITION NAVAL VESSELS ON VHF CHANNEL 16,
VIA E-MAIL TO CUSNC.BWC@ME.NAVY.MIL AND BY
PHONE TO 973 1785 3879.
E. U.S. FLAG VESSELS ARE ALSO ENCOURAGED TO REPORT SUCH ACTIVITY
TO THE MARITIME ADMINISTRATION AT OPCENTR1@DOT.GOV.
5. ALL VESSELS SHOULD BE AWARE THAT COALITION NAVAL FORCES MAY
CONDUCT MARITIME AWARENESS CALLS, QUERIES AND APPROACHES IN
ORDER TO ENSURE THE SAFETY OF VESSELS TRANSITING THE PERSIAN GULF,
STRAIT OF HORMUZ AND GULF OF OMAN. U.S. FLAG VESSELS APPROACHING
COALITION NAVAL FORCES ARE ADVISED TO MAINTAIN RADIO CONTACT
ON VHF CHANNEL 16.
6. U.S. FLAG VESSELS BOUND FOR THE STRAIT OF HORMUZ IN EITHER
DIRECTION ARE ENCOURAGED TO CONTACT THE U.S. NAVY 5TH FLEET
NAVAL COOPERATION AND GUIDANCE FOR SHIPPING WATCH
AT 973 1785 3695 OR AT CUSNC.NCAGS_BW@ME.NAVY.MIL
AT LEAST TWO DAYS PRIOR TO AN ANTICIPATED TRANSIT.
7. THIS ADVISORY IS EFFECTIVE IMMEDIATELY AND WILL REMAIN IN
EFFECT UNTIL FURTHER NOTICE.
8. FOR FURTHER INFORMATION REGARDING THIS ADVISORY, CONTACT
CAMERON NARON, MARITIME ADMINISTRATION, DIRECTOR OF SECURITY,
CODE: MAR-420, ROOM W28-340, 1200 NEW JERSEY AVE, S.E.,
WASHINGTON, DC 20590, PHONE: 202 366 1883, FAX: 202 366 3954,
TELEX II: 710 822 9426 (MARAD DOT WSH),
OR E-MAIL: MARADSECURITY@DOT.GOV.
9. CANCEL MARAD ADVISORY 2013-01.
Reading this warning
- Maritime Safety Information (MSI)
- Navigational and meteorological warnings, forecasts and other urgent safety messages broadcast to ships.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- VHF / channel 16
- Very high frequency marine radio; channel 16 is the international distress, safety and calling channel.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Collected reports in this area · piracy & armed robbery reports
19 within 180 nm since 2012 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Vessel reports possible piracy activity in vicinity 25-25.1N 057-37.0E at 130400Z jun2019-06-13
- M/V approached by pirates in 24-57N 057-42E on 12 dec2017-12-14
- M/V attacked in vicinity 24-51N 058-33E at 222030Z nov2017-11-23
- M/V approached by pirates in 25-31N 057-25E at 11120Z jul2017-07-11
- M/V attacked in 25-32N 057-33E at 071440Z may2017-05-07
- Guidance to vessels operating in or near the strait of hormuz2015-05-01
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Mine reported in 26-24.58N 056-20.67EMines · 34.5 nm
- M/V cape dao suffered a security incident, disabled and adrift in 26-23.40N 056-34.40EDerelicts · 45.7 nm
- Derelict 274 meter M/V adalynn unlit and anchored in 25-36.99N 056-24.85EDerelicts · 48.9 nm
- Anchoring prohibited in area bound by 25-26.59N 055-05.88E, 25-28.17N 055-06.69E, 25-28.32N 055-09.15E,…Other · 55.8 nm
- GPS, GNSS, and AIS interference reported in vicinity of fujairah (25-07.33N 056-20.05E)Nav aids · 70.7 nm
- Fish farms established in areas bound by: a. 26-43.84N 056-56.88E, 26-43.80N 056-56.95E, 26-43.74N…Other · 72 nm
- Partially submerged wreck in vicinity 25-11.64N 054-10.12EWrecks · 104.4 nm
- Lattice beacon 25-38.19N 057-45.86E inoperativeNav aids · 113.1 nm
Worldwide in the collected sources
0 piracy & armed robbery reports listed in force · see all
Record snapshot 2026-10-02 01:25Z; source collection times vary.
Piracy
Vessels attacked or boarded, suspicious approaches, pirate action groups — Gulf of Aden, Gulf of Guinea, Malacca and Singapore Straits, South China Sea. All current piracy & armed robbery reports →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.