Maritime security centre · Bahrain (U.S. Navy)

Maritime Liaison Office advisories

Recorded as: MARLO ADVISORY

Advisories from the U.S. Navy's liaison office with the merchant shipping industry in the Gulf region.

Maritime security centres collect and relay reports of piracy, armed robbery, suspicious approaches and other threats to merchant ships, and advise them on precautions.

What the archive holds

30 messages in this archive record MARLO ADVISORY as their authority, issued from 2003-03-27 to 2014-05-15. None of them is in force in the latest lists we collected.

Other accounts for 11 of 30 recorded messages (37%), the largest warning type group in this selection.

Attributed to NAVAREAs, they fall mostly in NAVAREA IV (1) and NAVAREA XII (1).

Located messages lie in 5 sea areas, most often Gulf of Aden, Persian Gulf and Indian Ocean.

They reached this archive through HYDROPAC (27), HYDROLANT (1), NAVAREA XII (1) and NAVAREA IV (1).

Messages by year of issue

'03
'04
'05
'06
'07
'08
'09
'10
'11
'12
'13
'14

By month of issue, all years

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Warning types

Where

NAVAREA IV 1 · NAVAREA XII 1

Most recently issued

  1. HYDROPAC 1403/14 · Piracy · Red Sea2014-05-15
    M/V reports approach by two suspicious vessels in 12-44-08N 043-21-06E at 140420Z may
  2. HYDROPAC 1241/14 · Piracy · Gulf of Aden2014-04-30
    M/V approached by pirates in 12-03N 045-37E at 291300Z apr
  3. HYDROPAC 1079/14 · Piracy · Gulf of Aden2014-04-16
    M/V approached by pirates in 12-25N 043-43E at 141230Z apr
  4. HYDROPAC 1754/13 · Incidents · Arabian Sea2013-06-17
    Derelict M/V mol comfort on fire and sinking with debris in 12-33N 059-46E
  5. HYDROPAC 1464/13 · Piracy · Gulf of Aden2013-05-21
    M/V yong xing attacked in 13-11N 048-54E at 201220Z may
  6. HYDROPAC 498/13 · Derelicts · Indian Ocean2013-02-19
    Derelict vessel partially submerged and adrift vicinity 02-18N 048-02E at 181342Z feb
  7. HYDROPAC 1909/08 · Other · Gulf of Aden2008-09-29
    This marad advisory provides suggested reporting procedures for commercial vessels transiting the gulf of aden
  8. NAVAREA XII 404/08 · Other · Gulf of Aden2008-09-29
    This marad advisory provides suggested reporting procedures for commercial vessels transiting the gulf of aden

Earliest in the archive

  1. HYDROPAC 556/03 · War risk2003-03-27
    Iraqi paramilitary forces have conducted a number of attacks in direct violation of the law of armed conflict

Other maritime security centres in NAVAREA IV

Counts are messages recording this issuer as their authority, recounted 2026-09-24; see coverage for what is collected. Not for navigation.